1
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Mazzarella G, Muttillo EM, Coletta D, Picardi B, Rossi S, Rossi Del Monte S, Gomes V, Muttillo IA. Solid pseudopapillary tumor of the pancreas: A systematic review of clinical, surgical and oncological characteristics of 1384 patients underwent pancreatic surgery. Hepatobiliary Pancreat Dis Int 2024; 23:331-338. [PMID: 37236826 DOI: 10.1016/j.hbpd.2023.05.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 05/09/2023] [Indexed: 05/28/2023]
Abstract
BACKGROUND Pancreatic solid pseudopapillary tumors (SPTs) are rare clinical entity, with low malignancy and still unclear pathogenesis. They account for less than 2% of exocrine pancreatic neoplasms. This study aimed to perform a systematic review of the main clinical, surgical and oncological characteristics of pancreatic SPTs. DATA SOURCES MEDLINE/PubMed, Web of Science and Scopus databases were systematically searched for the main clinical, surgical and oncological characteristics of pancreatic SPTs up to April 2021, in accordance with the preferred reporting items for systematic reviews and meta-analyses (PRISMA) standards. Primary endpoints were to analyze treatments and oncological outcomes. RESULTS A total of 823 studies were recorded, 86 studies underwent full-text reviews and 28 met inclusion criteria. Overall, 1384 patients underwent pancreatic surgery. Mean age was 30 years and 1181 patients (85.3%) were female. The most common clinical presentation was non-specific abdominal pain (52.6% of cases). Mean overall survival was 98.1%. Mean recurrence rate was 2.8%. Mean follow-up was 4.2 years. CONCLUSIONS Pancreatic SPTs are rare, and predominantly affect young women with unclear pathogenesis. Radical resection is the gold standard of treatment achieving good oncological impact and a favorable prognosis in a yearly life-long follow-up.
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Affiliation(s)
- Gennaro Mazzarella
- Division of General and Emergency Surgery, San Filippo Neri Hospital, 00136 Rome, Italy; Department of Surgery "Pietro Valdoni", Sapienza University of Rome, Viale del Policlinico 155, 00161 Rome, Italy.
| | - Edoardo Maria Muttillo
- Division of General and Emergency Surgery, San Filippo Neri Hospital, 00136 Rome, Italy; Surgical and Medical Department of Translational Medicine, Sant'Andrea Hospital, Sapienza University of Rome, 00185 Rome, Italy
| | - Diego Coletta
- Department of Surgical Sciences, Umberto I University Hospital, Sapienza University of Rome, 00136 Rome, Italy; Department of General Surgery, Ospedali Riuniti Marche Nord, 61121 Pesaro, Italy
| | - Biagio Picardi
- Division of General and Emergency Surgery, San Filippo Neri Hospital, 00136 Rome, Italy
| | - Stefano Rossi
- Division of General and Emergency Surgery, San Filippo Neri Hospital, 00136 Rome, Italy
| | | | - Vito Gomes
- Department of Pathology, San Filippo Neri Hospital, 00136 Rome, Italy
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2
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aldmour A, Shaf'ei M, Ihmoud O, Ahmad Z, Ifdielat O, Sharayah M, Sharayah A, Salahaldeen M, Daradkeh S. Solid pseudopapillary tumor of pancreas: A report of two cases and literature review. Radiol Case Rep 2024; 19:3056-3061. [PMID: 38765882 PMCID: PMC11101750 DOI: 10.1016/j.radcr.2024.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 03/27/2024] [Accepted: 04/01/2024] [Indexed: 05/22/2024] Open
Abstract
Solid pseudopapillary neoplasm of the pancreas is rarely encountered in clinical practice. It is a tumor with a good prognosis and overall curative rates. It primarily affects young females in their twenties. It has characteristic imaging appearances, but a definite diagnosis requires histopathological examination. The treatment goal of solid pseudopapillary neoplasm is almost always curative and aims for complete resection of the mass. Here, we present 2 cases of this rare neoplasm. The first case was managed by laparoscopic distal pancreatectomy, while the second underwent a Whipple procedure for pancreatic head involvement.
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Affiliation(s)
- Abdalhameed aldmour
- School of Medicine, The University of Jordan, Special Surgery Department 11942 Amman, Jordan
| | - Moayad Shaf'ei
- School of Medicine, The University of Jordan, Special Surgery Department 11942 Amman, Jordan
| | - Omar Ihmoud
- School of Medicine, The University of Jordan, Intern Doctor, Ministry of health, 11942 Amman, Jordan
| | - Zaid Ahmad
- School of medicine, The University of Jordan, Department of Radiology and Nuclear Medicine 11974 Amman, Jordan
| | - Omar Ifdielat
- School of Medicine, The University of Jordan, Special Surgery Department 11942 Amman, Jordan
| | | | - Abdallah Sharayah
- School of medicine, Jordan University of Science and Technology, Amman, Jordan
| | | | - Salam Daradkeh
- Department of General Surgery, The University of Jordan, 11942 Amman, Jordan
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3
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Chen CC, Feng TY, Jan HC, Chou SJ, Chen TH, Wang SC. Rare case of solid pseudopapillary neoplasm of the pancreas with liver and splenic metastasis in a 19-year-old girl. Int J Surg Case Rep 2024; 120:109867. [PMID: 38870658 DOI: 10.1016/j.ijscr.2024.109867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 05/30/2024] [Accepted: 05/31/2024] [Indexed: 06/15/2024] Open
Abstract
INTRODUCTION Solid pseudopapillary neoplasms (SPNs) of the pancreas are rare neoplasms, accounting for only 1 %-2 % of all pancreatic tumors, and predominantly affect female patients. CASE PRESENTATION The present case report details a patient presenting to the emergency department with abdominal pain for 3 days who ultimately received a diagnosis of SPNs in the pancreatic body and tail. A contrast-enhanced computed tomography (CT) scan revealed a sizable mass arising from the pancreas, featuring an enhancing cystic component with involvement of the liver and spleen. The patient underwent subsequent exploratory laparotomy, a distal pancreatectomy, splenectomy, and partial hepatectomy. SPN diagnosis was confirmed by histopathology and immunohistochemistry with negative resection margins. CLINICAL DISCUSSION Approximately 70 % of SPN cases are asymptomatic and are incidentally discovered. Despite advances in diagnostic modalities, preoperative diagnosis of SPNs remains a clinical challenge. Surgical management with negative resection margins remains the primary treatment approach. The recurrence rate after surgical resection has been reported to be 3 %-9 %. The prognosis for SPNs limited to the pancreas is generally favorable, with a cure rate exceeding 95 % after complete surgical resection. CONCLUSION An SPN of the pancreas is a rare tumor observed in young female patients. Although it is classified as a malignant tumor, SPN has low malignant potential. Aggressive surgical resection, however, has proven effective in curing SPN for the majority of patients.
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Affiliation(s)
- Chi-Chi Chen
- Division of General Surgery, Department of Surgery, Cardinal Tien Hospital, New Taipei, Taiwan
| | - Ting-Yuan Feng
- Division of General Surgery, Department of Surgery, Cardinal Tien Hospital, New Taipei, Taiwan
| | - Hsiang-Chun Jan
- Division of General Surgery, Department of Surgery, Cardinal Tien Hospital, New Taipei, Taiwan
| | - Shaw-Jiun Chou
- Division of General Surgery, Department of Surgery, Cardinal Tien Hospital, New Taipei, Taiwan
| | - Tzu-Hung Chen
- Division of General Surgery, Department of Surgery, Cardinal Tien Hospital, New Taipei, Taiwan
| | - Sheng-Chun Wang
- Division of General Surgery, Department of Surgery, Cardinal Tien Hospital, New Taipei, Taiwan.
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4
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Murata Y, Tsuji N, Noguchi D, Ito T, Hayasaki A, Iizawa Y, Fujii T, Tanemura A, Kuriyama N, Kishiwada M, Mizuno S. Laparoscopic Warshaw procedure in pediatric solid pseudopapillary neoplasm of the pancreas: Technical feasibility and oncological outcomes. Asian J Endosc Surg 2024; 17:e13336. [PMID: 38923310 DOI: 10.1111/ases.13336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 05/26/2024] [Accepted: 06/03/2024] [Indexed: 06/28/2024]
Abstract
Achieving margin-negative resection is crucial in treatment of solid pseudopapillary neoplasm (SPN) of the pancreas, while preserving the spleen during distal pancreatectomy is highly desirable in pediatric cases. Laparoscopic Warshaw procedure (Lap-WT) is invaluable when tumor involvement in splenic vessels complicates preservation. However, the feasibility of Lap-WT in pediatric patients remains contentious. This study presents the clinical outcomes of three pediatric SPN cases who underwent Lap-WT. The median age was 10 years, with a median tumor size of 50 mm. Lap-WT demonstrated successful outcomes with a median operation time of 311 min and blood loss of 12 mL. No postoperative complications occurred, with a median length of hospital stay of 8 days. Long-term follow-up showed mild thrombocytopenia and increased spleen volume in two cases, perigastric varices in one, with no bleeding complications. No instances of tumor recurrence were observed. Lap-WT emerges as a feasible approach for pediatric SPN, ensuring spleen preservation without compromising oncological outcomes.
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Affiliation(s)
- Yasuhiro Murata
- Department of the Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Naoya Tsuji
- Department of the Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Daisuke Noguchi
- Department of the Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Takahiro Ito
- Department of the Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Aoi Hayasaki
- Department of the Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Yusuke Iizawa
- Department of the Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Takehiro Fujii
- Department of the Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Akihiro Tanemura
- Department of the Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Naohisa Kuriyama
- Department of the Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Masashi Kishiwada
- Department of the Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Shugo Mizuno
- Department of the Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
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5
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Khristenko E, Gaida MM, Tjaden C, Steinle V, Loos M, Krieger K, Weber TF, Kauczor HU, Klauß M, Mayer P. Imaging differentiation of solid pseudopapillary neoplasms and neuroendocrine neoplasms of the pancreas. Eur J Radiol Open 2024; 12:100576. [PMID: 38882634 PMCID: PMC11176946 DOI: 10.1016/j.ejro.2024.100576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 05/21/2024] [Accepted: 05/29/2024] [Indexed: 06/18/2024] Open
Abstract
Purpose The present study aimed to compare the computed tomography (CT) and magnetic resonance imaging (MRI) features of solid pseudopapillary neoplasms (SPNs) and pancreatic neuroendocrine neoplasms (pNENs). Method Lesion imaging features of 39 patients with SPNs and 127 patients with pNENs were retrospectively extracted from 104 CT and 91 MRI scans. Results Compared to pNEN patients, SPN patients were significantly younger (mean age 51.8 yrs versus 32.7 yrs) and more often female (female: male ratio, 5.50:1 versus 1.19:1). Most SPNs and pNENs presented as well-defined lesions with an expansive growth pattern. SPNs more often appeared as round or ovoid lesions, compared to pNENs which showed a lobulated or irregular shape in more than half of cases (p<0.01). A surrounding capsule was detected in the majority of SPNs, but only in a minority of pNENs (<0.01). Hemorrhage occurred non-significantly more often in SPNs (p=0.09). Signal inhomogeneity in T1-fat-saturated (p<0.01) and T2-weighted imaging (p=0.046) as well as cystic degeneration (p<0.01) were more often observed in SPNs. Hyperenhancement in the arterial and portal-venous phase was more common in pNENs (p<0.01). Enlargement of locoregional lymph nodes (p<0.01) and liver metastases (p=0.03) were observed in some pNEN patients, but not in SPN patients. Multivariate logistic regression identified the presence of a capsule (p<0.01), absence of arterial hyperenhancement (p<0.01), and low patient age (p<0.01), as independent predictors for SPN. Conclusions The present study provides three key features for differentiating SPNs from pNENs extracted from a large patient cohort: presence of a capsule, absence of arterial hyperenhancement, and low patient age.
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Affiliation(s)
- Ekaterina Khristenko
- Clinic for Diagnostic and Interventional Radiology, Heidelberg University Hospital, Heidelberg 69120, Germany
| | - Matthias M Gaida
- Institute of Pathology, University Medical Center Mainz, JGU-Mainz, Mainz 55131, Germany
- Joint Unit Immunopathology, Institute of Pathology, University Medical Center, JGU-Mainz and TRON, Translational Oncology at the University Medical Center, JGU-Mainz, Mainz 55131, Germany
- Institute of Pathology, Heidelberg University Hospital, Heidelberg 69120, Germany
| | - Christine Tjaden
- Department of General, Visceral, and Transplantation Surgery, Heidelberg University Hospital, Heidelberg 69120, Germany
| | - Verena Steinle
- Clinic for Diagnostic and Interventional Radiology, Heidelberg University Hospital, Heidelberg 69120, Germany
| | - Martin Loos
- Department of General, Visceral, and Transplantation Surgery, Heidelberg University Hospital, Heidelberg 69120, Germany
| | - Korbinian Krieger
- Clinic for Diagnostic and Interventional Radiology, Heidelberg University Hospital, Heidelberg 69120, Germany
- Department of Nuclear Medicine, Inselspital, University Hospital Bern, Bern 3010, Switzerland
| | - Tim F Weber
- Clinic for Diagnostic and Interventional Radiology, Heidelberg University Hospital, Heidelberg 69120, Germany
| | - Hans-Ulrich Kauczor
- Clinic for Diagnostic and Interventional Radiology, Heidelberg University Hospital, Heidelberg 69120, Germany
| | - Miriam Klauß
- Clinic for Diagnostic and Interventional Radiology, Heidelberg University Hospital, Heidelberg 69120, Germany
| | - Philipp Mayer
- Clinic for Diagnostic and Interventional Radiology, Heidelberg University Hospital, Heidelberg 69120, Germany
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6
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Verschuur AVD, Hackeng WM, Westerbeke F, Benhamida JK, Basturk O, Selenica P, Raicu GM, Molenaar IQ, van Santvoort HC, Daamen LA, Klimstra DS, Yachida S, Luchini C, Singhi AD, Geisenberger C, Brosens LAA. DNA Methylation Profiling Enables Accurate Classification of Nonductal Primary Pancreatic Neoplasms. Clin Gastroenterol Hepatol 2024; 22:1245-1254.e10. [PMID: 38382726 DOI: 10.1016/j.cgh.2024.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 02/07/2024] [Accepted: 02/07/2024] [Indexed: 02/23/2024]
Abstract
BACKGROUND & AIMS Cytologic and histopathologic diagnosis of non-ductal pancreatic neoplasms can be challenging in daily clinical practice, whereas it is crucial for therapy and prognosis. The cancer methylome is successfully used as a diagnostic tool in other cancer entities. Here, we investigate if methylation profiling can improve the diagnostic work-up of pancreatic neoplasms. METHODS DNA methylation data were obtained for 301 primary tumors spanning 6 primary pancreatic neoplasms and 20 normal pancreas controls. Neural Network, Random Forest, and extreme gradient boosting machine learning models were trained to distinguish between tumor types. Methylation data of 29 nonpancreatic neoplasms (n = 3708) were used to develop an algorithm capable of detecting neoplasms of non-pancreatic origin. RESULTS After benchmarking 3 state-of-the-art machine learning models, the random forest model emerged as the best classifier with 96.9% accuracy. All classifications received a probability score reflecting the confidence of the prediction. Increasing the score threshold improved the random forest classifier performance up to 100% with 87% of samples with scores surpassing the cutoff. Using a logistic regression model, detection of nonpancreatic neoplasms achieved an area under the curve of >0.99. Analysis of biopsy specimens showed concordant classification with their paired resection sample. CONCLUSIONS Pancreatic neoplasms can be classified with high accuracy based on DNA methylation signatures. Additionally, non-pancreatic neoplasms are identified with near perfect precision. In summary, methylation profiling can serve as a valuable adjunct in the diagnosis of pancreatic neoplasms with minimal risk for misdiagnosis, even in the pre-operative setting.
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Affiliation(s)
- Anna Vera D Verschuur
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
| | - Wenzel M Hackeng
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Florine Westerbeke
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Jamal K Benhamida
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Olca Basturk
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Pier Selenica
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - G Mihaela Raicu
- Department of Pathology, St Antonius Hospital and Pathology DNA, Nieuwegein, The Netherlands
| | - I Quintus Molenaar
- Department of Pathology, St Antonius Hospital and Pathology DNA, Nieuwegein, The Netherlands; Department of Surgery, Regional Academic Cancer Center Utrecht, University Medical Center Utrecht Cancer Center and St. Antonius Hospital, Nieuwegein, The Netherlands
| | - Hjalmar C van Santvoort
- Department of Surgery, Regional Academic Cancer Center Utrecht, University Medical Center Utrecht Cancer Center and St. Antonius Hospital, Nieuwegein, The Netherlands
| | - Lois A Daamen
- Department of Surgery, Regional Academic Cancer Center Utrecht, University Medical Center Utrecht Cancer Center and St. Antonius Hospital, Nieuwegein, The Netherlands
| | | | - Shinichi Yachida
- Department of Cancer Genome Informatics, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Claudio Luchini
- Department of Diagnostics and Public Health, Section of Pathology, University of Verona, Verona, Italy
| | - Aatur D Singhi
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | | | - Lodewijk A A Brosens
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands; Department of Pathology, Radboud University Medical Center, Nijmegen, The Netherlands.
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7
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Salirrosas O, Vega EA, Panettieri E, Harandi H, Kozyreva O, Ghanta S, Conrad C. Solid Pseudopapillary Tumor of the Pancreas: Is Enucleation Safe? Ann Surg Oncol 2024; 31:4105-4111. [PMID: 38480561 DOI: 10.1245/s10434-024-15119-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 02/14/2024] [Indexed: 05/09/2024]
Abstract
BACKGROUND While solid pseudopapillary tumor (SPT) of the pancreas are oncologically low-risk tumors, their resection with pancreaticoduodenectomy (PD) or partial pancreatectomy (PP) carries a significant risk for morbidity. To balance the favorable prognosis with the surgical morbidity of pancreas resection, this study explores the oncologic safety of enucleation (EN). PATIENTS AND METHODS The National Cancer Database (NCDB) was queried for resected SPT from January 2004 through December 2020. Perioperative outcomes and survival were analyzed with Kruskal-Wallis tests, and Kaplan-Meier analysis (with log-rank test). Survival analysis was performed to compare patients with and without lymph node (LN) metastases and binary logistic regression for predictors of LN metastasis. RESULTS A total of 922 patients met inclusion criteria; 18 patients (2%) underwent EN, 550 (59.6%) underwent PP, and 354 (38.4%) underwent PD. Mean tumor size was 57.6 mm. Length of hospital stay was significantly shorter for EN compared with PP and PD groups (3.8 versus 6.2 versus 9.4 days, p < 0.001). There was a nonsignificant improvement in unplanned readmission [0% versus 8% versus 10.7% (p = 0.163)], 30-day mortality [0% versus 0.5% versus 0% (p = 0.359)], and 90-day mortality [0% versus 0.5% versus 0% (p = 0.363)] between EN, PP, and PD groups. Survival analyses showed no difference in OS when comparing EN versus PP (p = 0.443), and EN versus PD (p = 0317). Patients with LN metastases (p < 0.001) fared worse, and lymphovascular invasion, higher T category (T3-4) and M1 status were found as predictors for LN metastasis. CONCLUSIONS EN may be considered for select patients leading to favorable outcomes. Because survival was worse in the rare cohort of patients with LN metastases, the predictors for LN metastasis identified here may aid in stratifying patients to EN versus resection.
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Affiliation(s)
- Oscar Salirrosas
- Department of Surgery, St. Elizabeth's Medical Center, Boston University School of Medicine, Boston, MA, USA
| | - Eduardo A Vega
- Department of Surgery, St. Elizabeth's Medical Center, Boston University School of Medicine, Boston, MA, USA
| | - Elena Panettieri
- Department of Surgery, St. Elizabeth's Medical Center, Boston University School of Medicine, Boston, MA, USA
- Hepatobiliary Surgery Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Hamed Harandi
- Department of Surgery, St. Elizabeth's Medical Center, Boston University School of Medicine, Boston, MA, USA
| | - Olga Kozyreva
- Department of Medical Oncology, Dana-Farber Cancer Institute at St. Elizabeth's Medical Center, Harvard Medical School, Boston, MA, USA
| | - Shree Ghanta
- Department of Medicine, St. Elizabeth's Medical Center, Boston University School of Medicine, Boston, MA, USA
| | - Claudius Conrad
- Department of Surgery, St. Elizabeth's Medical Center, Boston University School of Medicine, Boston, MA, USA.
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8
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Ku PY, Cheng SB, Chen YJ, Lai CY, Liu HT, Chen WH. Surgical Outcomes of Pancreatic Solid Pseudopapillary Neoplasm: Experiences of 24 Patients in a Single Institute. MEDICINA (KAUNAS, LITHUANIA) 2024; 60:889. [PMID: 38929506 PMCID: PMC11205590 DOI: 10.3390/medicina60060889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 05/22/2024] [Accepted: 05/25/2024] [Indexed: 06/28/2024]
Abstract
Background and Objectives: The pancreatic solid pseudopapillary neoplasm (SPN), a rare tumor predominantly affecting young women, has seen an increased incidence due to improved imaging and epidemiological knowledge. This study aimed to understand the outcomes of different interventions, possible complications, and associated risk factors. Materials and Methods: This study retrospectively analyzed 24 patients who underwent pancreatic surgery for SPNs between September 1998 and July 2020. Results: Surgical intervention, typically required for symptomatic cases or pathological confirmation, yielded favorable outcomes with a 5-year survival rate of up to 97%. Despite challenges in standardizing preoperative evaluation and follow-up protocols, aggressive complete resection showed promising long-term survival and good oncological outcomes. Notably, no significant differences were found between conventional and minimally invasive (MI) surgery in perioperative outcomes. Histopathological correlations were lacking in prognosis and locations. Among the patients, one developed diffuse liver metastases 41 months postoperatively but responded well to chemotherapy and transcatheter arterial chemoembolization, with disease stability observed at 159 postoperative months. Another patient developed nonalcoholic steatohepatitis after surgery and underwent liver transplantation, succumbing to poor medication adherence 115 months after surgery. Conclusions: These findings underscore the importance of surgical intervention in managing SPNs and suggest the MI approach as a viable option with comparable outcomes to conventional surgery.
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Affiliation(s)
- Peng-Yu Ku
- Division of General Surgery, Department of Surgery, Taichung Veterans General Hospital, Taichung 40705, Taiwan; (P.-Y.K.)
| | - Shao-Bin Cheng
- Division of General Surgery, Department of Surgery, Taichung Tzu Chi Hospital, Taichung 427213, Taiwan
| | - Yi-Ju Chen
- Division of General Surgery, Department of Surgery, Taichung Veterans General Hospital, Taichung 40705, Taiwan; (P.-Y.K.)
| | - Chia-Yu Lai
- Division of General Surgery, Department of Surgery, Taichung Tzu Chi Hospital, Taichung 427213, Taiwan
| | - Hsiao-Tien Liu
- Division of General Surgery, Department of Surgery, Taichung Tzu Chi Hospital, Taichung 427213, Taiwan
| | - Wei-Hsin Chen
- Division of General Surgery, Department of Surgery, Taichung Veterans General Hospital, Taichung 40705, Taiwan; (P.-Y.K.)
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9
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Achemlal A, Essaoudi MA, Jidal M, Bah MF, Najih M, Bouchentouf SM, Berrag S, Nejjari F, Adioui T, Tamzaourte M. Solid pseudopapillary tumor of the pancreas mistaken for gastrointestinal stromal tumor: A case report. SAGE Open Med Case Rep 2024; 12:2050313X241255497. [PMID: 38764914 PMCID: PMC11102672 DOI: 10.1177/2050313x241255497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Accepted: 04/29/2024] [Indexed: 05/21/2024] Open
Abstract
Solid pseudopapillary epithelial neoplasms of the pancreas are rare entities, first described in 1959 by Frantz. These tumors represent less than 2% of pancreatic cancers and mainly affect young women. They can reach a significant size and its radiological features can lead to diagnostic pitfalls, such as gastrointestinal stromal tumors, which are rare soft-tissue sarcomas that can appear anywhere along the gastrointestinal tract. Clinicians and radiologists need to be aware of the existing diagnostic pitfalls between these two entities, because of their possible similarities. We report here the case of a 33-year-old woman with a solid pseudopapillary epithelial neoplasms of the pancreas initially misdiagnosed as an exophytic gastric stromal tumor.
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Affiliation(s)
- Amine Achemlal
- Department of Gastroenterology 1, Mohammed V Military Training Hospital, Rabat, Morocco
| | | | - Manal Jidal
- Department of Radiology, Mohammed V Military Training Hospital, Rabat, Morocco
| | | | - Mohammed Najih
- Department of Digestive Surgery I, Mohammed V Military Training Hospital, Rabat, Morocco
| | | | - Sanaa Berrag
- Department of Gastroenterology 1, Mohammed V Military Training Hospital, Rabat, Morocco
| | - Fouad Nejjari
- Department of Gastroenterology 1, Mohammed V Military Training Hospital, Rabat, Morocco
| | - Tarik Adioui
- Department of Gastroenterology 1, Mohammed V Military Training Hospital, Rabat, Morocco
| | - Mouna Tamzaourte
- Department of Gastroenterology 1, Mohammed V Military Training Hospital, Rabat, Morocco
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10
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Jagannathan AM, Rymbai ML, Anand A, Paul A, Das B, Kodiatte TA, Vyas FL, Raju RS, Joseph P. Curative Resection for Metastatic Solid Pseudopapillary Neoplasm of Pancreas-a Case Series. Indian J Surg Oncol 2024; 15:232-237. [PMID: 38817992 PMCID: PMC11133237 DOI: 10.1007/s13193-022-01690-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 12/13/2022] [Indexed: 01/21/2023] Open
Abstract
Solid pseudopapillary neoplasm (SPN) is an unusual tumor of the pancreas. Unlike ductal adenocarcinoma, SPN is commoner in young women and is indolent with better prognosis. Fifteen percent of patients, however, develop metastases, often synchronous and involving the liver or peritoneum. Owing to the paucity of cases, management of the metastatic disease is not clearly defined. Retrospective review of case notes of patients treated between 2006 and 2019. There were 53 patients with SPN of which 4 had hepatic metastases-3 synchronous and 1 metachronous. Two patients underwent simultaneous distal pancreatectomy and splenectomy with liver resection (right posterior sectionectomy and metastasectomy). One required right hepatectomy with metastasectomy for metachronous liver metastases. The other underwent a staged operation-remnant tumor excision with metastasectomy followed by right hepatectomy after portal vein embolization. All four patients are recurrence free on median follow-up of 38.5 months. In view of the excellent prognosis, we recommend radical resection of both the primary lesion and metastases for SPN.
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Affiliation(s)
- Aparna M. Jagannathan
- Department of Hepato Pancreato Biliary Surgery, Christian Medical College, Vellore, Tamil Nadu 632002 India
| | - Manbha L. Rymbai
- Department of Hepato Pancreato Biliary Surgery, Christian Medical College, Vellore, Tamil Nadu 632002 India
| | - Abhilasha Anand
- Department of Hepato Pancreato Biliary Surgery, Christian Medical College, Vellore, Tamil Nadu 632002 India
| | - Anoop Paul
- Department of Hepato Pancreato Biliary Surgery, Christian Medical College, Vellore, Tamil Nadu 632002 India
| | - Borna Das
- Department of Hepato Pancreato Biliary Surgery, Christian Medical College, Vellore, Tamil Nadu 632002 India
| | | | - Frederick L. Vyas
- Department of Hepato Pancreato Biliary Surgery, Christian Medical College, Vellore, Tamil Nadu 632002 India
| | - Ravish Sanghi Raju
- Department of Hepato Pancreato Biliary Surgery, Christian Medical College, Vellore, Tamil Nadu 632002 India
| | - Philip Joseph
- Department of Hepato Pancreato Biliary Surgery, Christian Medical College, Vellore, Tamil Nadu 632002 India
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Codjia T, Marique L, Aussilhou B, Ftériche FS, de Mestier L, Rebours V, Cros J, Ruszniewski P, Lévy P, Lesurtel M, Sauvanet A, Dokmak S. Outcome and survival were similar with laparoscopic and open pancreatectomy in 102 solid pseudopapillary neoplasms. Surg Endosc 2024; 38:2169-2179. [PMID: 38448620 DOI: 10.1007/s00464-024-10708-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 01/21/2024] [Indexed: 03/08/2024]
Abstract
BACKGROUND Solid pseudopapillary neoplasms of the pancreas (SPNP) are rare tumors predominantly in young women. We report the largest single-center cohort study comparing resection of SPNP by laparoscopic approach (LA) and the open approach (OA). METHOD Between 2001 and 2021, 102 patients (84% women, median age: 30) underwent pancreatectomy for SPNP and were retrospectively studied. Demographic, perioperative, pathological, early and the long-term results were evaluated between patients operated by LA and those by OA. RESULTS Population included 40 LA and 62 OA. There were no significant differences in demographics data between the groups. A preoperative biopsy by endoscopic ultrasound was performed in 45 patients (44%) with no difference between the groups. Pancreatoduodenectomy (PD) was less frequently performed by LA (25 vs 53%, p = 0.004) and distal pancreatectomy (DP) was more frequently performed by LA (40 vs 16%, p = 0.003). In the subgroup analysis by surgical procedure, LA-PD was associated with one mortality, less median blood loss (180 vs 200 ml, p = 0.034) and fewer harvested lymph nodes (11 vs 15, p = 0.02). LA-DP was associated with smaller median tumor size on imaging (40 vs 80mm, p = 0.048), shorter surgery (135 vs 190 min, p = 0.028), and fewer complications according to the median comprehensive complication index score (0 vs 8.7, p = 0.048). LA-Central pancreatectomy was associated with shorter surgery (160 vs 240, p = 0.037), less median blood loss (60 vs 200, p = 0.043), and less harvested lymph nodes (5 vs 2, p = 0.025). After a median follow-up of 60 months, two recurrences (2%) were observed and were unrelated to the approach. CONCLUSIONS The LA for SPNP appears to be safe, should be applied cautiously in case of PD for large lesion, and was not associated with recurrence.
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Affiliation(s)
- Tatiana Codjia
- AP-HP, Hôpital Beaujon, Department of HPB Surgery and Liver Transplantation, DMU DIGEST, University Paris Cité, Clichy, France
| | - Lancelot Marique
- AP-HP, Hôpital Beaujon, Department of HPB Surgery and Liver Transplantation, DMU DIGEST, University Paris Cité, Clichy, France
| | - Béatrice Aussilhou
- AP-HP, Hôpital Beaujon, Department of HPB Surgery and Liver Transplantation, DMU DIGEST, University Paris Cité, Clichy, France
| | - Fadhel Samir Ftériche
- AP-HP, Hôpital Beaujon, Department of HPB Surgery and Liver Transplantation, DMU DIGEST, University Paris Cité, Clichy, France
| | - Louis de Mestier
- AP-HP, Hôpital Beaujon, Department of Gastroenterology and Pancreatic Diseases, DMU DIGEST, University Paris Cité, Clichy, France
| | - Vinciane Rebours
- AP-HP, Hôpital Beaujon, Department of Gastroenterology and Pancreatic Diseases, DMU DIGEST, University Paris Cité, Clichy, France
| | - Jérome Cros
- AP-HP, Hôpital Beaujon, Department of Pathology, University Paris Cité, Clichy, France
| | - Philippe Ruszniewski
- AP-HP, Hôpital Beaujon, Department of Gastroenterology and Pancreatic Diseases, DMU DIGEST, University Paris Cité, Clichy, France
| | - Philippe Lévy
- AP-HP, Hôpital Beaujon, Department of Gastroenterology and Pancreatic Diseases, DMU DIGEST, University Paris Cité, Clichy, France
| | - Mickael Lesurtel
- AP-HP, Hôpital Beaujon, Department of HPB Surgery and Liver Transplantation, DMU DIGEST, University Paris Cité, Clichy, France
| | - Alain Sauvanet
- AP-HP, Hôpital Beaujon, Department of HPB Surgery and Liver Transplantation, DMU DIGEST, University Paris Cité, Clichy, France
| | - Safi Dokmak
- AP-HP, Hôpital Beaujon, Department of HPB Surgery and Liver Transplantation, DMU DIGEST, University Paris Cité, Clichy, France.
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12
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Lu X, Chen H, Zhang T. Solid pseudopapillary neoplasm (SPN) of the pancreas: current understanding on its malignant potential and management. Discov Oncol 2024; 15:77. [PMID: 38498246 PMCID: PMC10948659 DOI: 10.1007/s12672-024-00905-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 02/22/2024] [Indexed: 03/20/2024] Open
Abstract
Solid pseudopapillary neoplasms (SPN) of the pancreas are presently recognized as low-grade malignant tumors that are frequently observed in young females. This tumor has a low incidence and is associated with an excellent prognosis following surgical resection. Typical SPNs primarily affect the pancreas and tend to have moderate or asymptomatic manifestations. Based on retrospective research, it is anticipated that patients with SPN can achieve disease-free survival, even in cases when metastasis is detected during inspection. However, the incidence of malignant SPN has been consistently underestimated, as evidenced by recent research findings. Malignancy of SPN primarily encompasses invasion and infiltration, metastasis, and recurrence after R0 resection. Imaging technologies such as Ultrasound, Computed Tomography, Magnetic Resonance Imaging, and Position Emission Tomography are capable of preliminarily identifying malignant SPN, which is primarily based on its invasive clinical features. Research on risk factors of malignant SPN revealed that larger tumor size, Ki-67 index, and several other parameters had significant correlations with invasive tumor behavior. Pathologic features of malignant SPNs overlay other pancreatic tumors, nevertheless they can provide valuable assistance in the process of diagnosis. Several confirmed specific pathologic biomarkers are related to its cellular origin, characteristic gene mutation, and cell proliferation. Considering the invasiveness of malignant SPN, it is imperative to enhance the comprehensiveness of its therapy. Tumor resection remains a suggested course of action in line with typical SPN, and additional lymph node dissection is seen as reasonable. Compared to benign SPNs, malignant SPNs have worse prognosis, underscoring the necessity of early identification and treatment in comprehensive medical centers to get improved clinical outcomes.
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Affiliation(s)
- Xiaoyue Lu
- Peking Union Medical College, Beijing, China
| | - Hao Chen
- Department of General Surgery, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Beijing, China
| | - Taiping Zhang
- Department of General Surgery, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Beijing, China.
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13
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Fu C, Li X, Wang Y, Wang C, Jin H, Liu K, Xu H. Solid pseudopapillary neoplasm of the pancreas: a retrospective study of 195 cases. Front Oncol 2024; 14:1349282. [PMID: 38469229 PMCID: PMC10925641 DOI: 10.3389/fonc.2024.1349282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 02/12/2024] [Indexed: 03/13/2024] Open
Abstract
Objective Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare exocrine tumor of the pancreas. The aim of our study is to summarize the clinical features of SPN and to analyze the risk factors for malignant SPN. Methods From May 2013 to September 2022, patients who were pathologically confirmed to have SPN were retrospectively reviewed. Demographic data, clinical and pathological features, follow-up data were collected and analyzed. To investigate the factors influencing the benign or malignant nature of SPN, we employed logistic regression. Additionally, we utilized Kaplan-Meier curves to depict and analyze the overall prognosis. Results A total of 195 patients were included, 163 of whom were female and the average age of all patients was 31.7 years old. Among 195 patients, 101 patients (51.8%) had no obvious clinical symptoms and their pancreatic lesions were detected during routine examination. The primary symptom was abdominal pain and distension in 64 cases (32.8%). The maximum diameter of SPN tumors ranged from 1-17 cm (mean 6.19 cm). Forty-eight postoperative complications developed in 43 (22.1%) patients. After a median follow-up duration of 44.5 months, the overall 5-year survival rate was 98.8% and the recurrence rate was 1.5%. Furthermore, we observed a statistically significant difference in the completeness of the tumor capsule between benign and malignant SPN. Conclusion SPN is associated with a favorable long-term survival after surgery in our large sample size cohort. For malignant SPN, tumor capsule incompleteness is an independent risk factor.
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Affiliation(s)
- Chang Fu
- Department of Hepatobiliary and Pancreatic Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Xiaocong Li
- Medical Research and Biometrics Center, National Clinical Research Center for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yongxin Wang
- Department of Hepatobiliary and Pancreatic Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Chuangshi Wang
- Medical Research and Biometrics Center, National Clinical Research Center for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hengwei Jin
- Department of Hepatobiliary and Pancreatic Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Kai Liu
- Department of Hepatobiliary and Pancreatic Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Hongji Xu
- Department of Abdominal Surgery, Guiqian International General Hospital, Guiyang, Guizhou, China
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14
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Fleming AM, Mansfield SA, Jancelewicz T, Gosain A, Eubanks JW, Davidoff AM, Langham MR, Murphy AJ. Hepatic Metastasectomy in Pediatric Patients: An Observational Study. J Pediatr Surg 2024; 59:247-253. [PMID: 37980196 DOI: 10.1016/j.jpedsurg.2023.10.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 10/11/2023] [Indexed: 11/20/2023]
Abstract
BACKGROUND The role of hepatectomy for metastatic disease in children is controversial. Rationales include potential cure, obtaining a diagnosis, and guiding chemotherapy decisions. This study examines the safety and utility of hepatic metastasectomy for children at a single institution. METHODS After IRB approval (#22-1258), medical records were reviewed from 1995 to 2022 for children undergoing hepatic metastasectomy. En-bloc hepatectomies during primary tumor resection were excluded. RESULTS Hepatic metastasectomy was performed in 16 patients for a variety of histologies. Median patient age was 12.2 years [IQR 6.9-22.6], and 13/16 patients were female (81 %). Number of hepatic metastases ranged from 1 to 23 and involved between 1 and 8 Couinaud segments. Anatomic resections included 4 hemihepatectomies and 1 sectionectomy. All other resections were nonanatomic. 3/6 resections for germ cell tumor (GCT) revealed only mature teratoma, driving adjuvant therapy decisions. When indicated, median time to adjuvant chemotherapy was 19 days [IQR 11-22]. No patients had Clavien-Dindo Class III or higher perioperative morbidity. Three patients (1 GCT, 1 adrenocortical carcinoma (ACC), and 1 gastric neuroendocrine tumor (GNET) experienced hepatic relapse. The patients with relapsed GCT and GNET are alive with disease at 17 and 135 months, respectively. The patient with ACC died of disease progression and liver failure. One patient with Wilms tumor experienced extrahepatic, retroperitoneal recurrence and died. With a median follow-up of 38 months, 10-year disease-specific and disease-free survival were 77 % and 61 %, respectively. CONCLUSIONS Hepatic metastasectomy can be accomplished safely in children, may guide adjuvant therapy decisions, and is associated with long-term survival in selected patients. LEVEL OF EVIDENCE Level IV. TYPE OF STUDY Treatment Study, Case series with no comparison group.
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Affiliation(s)
- Andrew M Fleming
- St. Jude Children's Research Hospital, Department of Surgery, Memphis, TN, USA; The University of Tennessee Health Science Center, Department of Surgery, Memphis, TN, USA
| | - Sara A Mansfield
- St. Jude Children's Research Hospital, Department of Surgery, Memphis, TN, USA; The University of Tennessee Health Science Center, Department of Surgery, Memphis, TN, USA
| | - Tim Jancelewicz
- St. Jude Children's Research Hospital, Department of Surgery, Memphis, TN, USA; The University of Tennessee Health Science Center, Department of Surgery, Memphis, TN, USA
| | - Ankush Gosain
- St. Jude Children's Research Hospital, Department of Surgery, Memphis, TN, USA; The University of Tennessee Health Science Center, Department of Surgery, Memphis, TN, USA
| | - James W Eubanks
- St. Jude Children's Research Hospital, Department of Surgery, Memphis, TN, USA; The University of Tennessee Health Science Center, Department of Surgery, Memphis, TN, USA
| | - Andrew M Davidoff
- St. Jude Children's Research Hospital, Department of Surgery, Memphis, TN, USA; The University of Tennessee Health Science Center, Department of Surgery, Memphis, TN, USA
| | - Max R Langham
- St. Jude Children's Research Hospital, Department of Surgery, Memphis, TN, USA; The University of Tennessee Health Science Center, Department of Surgery, Memphis, TN, USA
| | - Andrew J Murphy
- St. Jude Children's Research Hospital, Department of Surgery, Memphis, TN, USA; The University of Tennessee Health Science Center, Department of Surgery, Memphis, TN, USA.
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15
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ALGhabra Y, Hamdi M, Alhomsi M, Alusef A, Qatleesh S, Ousta MA. Solid pseudopapillary neoplasm of the pancreas: A case report with a brief literature review. Int J Surg Case Rep 2024; 115:109234. [PMID: 38245948 PMCID: PMC10831808 DOI: 10.1016/j.ijscr.2024.109234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 01/03/2024] [Accepted: 01/05/2024] [Indexed: 01/23/2024] Open
Abstract
INTRODUCTION Solid pseudopapillary neoplasm (SPN) of the pancreas, representing only 1 % of pancreatic cancers, was identified by Virginia Frantz in 1959. Predominantly affecting young females, it often remains asymptomatic, posing diagnostic challenges due to slow growth. This paper emphasizes SPN's rarity and associated diagnostic complexities. CASE PRESENTATION In a specific case, a 17-year-old female with post-traumatic right flank pain underwent an enhanced CT scan, revealing a well-defined, hypodense mass in the pancreatic head. With normal laboratory results, a diagnostic laparotomy exposed a sizable solid cystic mass. A Whipple procedure unveiled a predominantly cystic mass enveloped by a well-developed capsule. DISCUSSION SPN appears as a distinct mixed solid and cystic lesion on imaging, necessitating confirmation through core biopsy. Surgical resection, the primary treatment, ensures a positive overall prognosis, despite rare recurrence and metastases. Microscopic examination reveals pseudopapillae, and immunohistochemistry aids diagnosis with positive staining for estrogen receptor, progesterone receptor, CD10, and CD99. CONCLUSION SPN, a rare pancreatic neoplasm predominantly affecting young females, may present with abdominal pain or palpable mass despite its usual asymptomatic nature. Diagnosis involves imaging and biopsy confirmation, with surgical resection as the curative treatment. While prognosis is generally favorable, comprehensive understanding and improved management require further research for this uncommon pancreatic neoplasm.
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Affiliation(s)
- Yasser ALGhabra
- Al-Mouwasat University Hospital, Faculty of Medicine, Damascus University, Damascus, Syria
| | - Mohammad Hamdi
- Al-Mouwasat University Hospital, Faculty of Medicine, Damascus University, Damascus, Syria; M.D, Faculty of Medicine, Aleppo University, Aleppo, Syria.
| | - Malath Alhomsi
- Al-Mouwasat University Hospital, Faculty of Medicine, Damascus University, Damascus, Syria
| | - Ahmad Alusef
- Al-Mouwasat University Hospital, Faculty of Medicine, Damascus University, Damascus, Syria; M.D, Faculty of Medicine, Aleppo University, Aleppo, Syria
| | - Safaa Qatleesh
- Al-Mouwasat University Hospital, Faculty of Medicine, Damascus University, Damascus, Syria
| | - Mhd Ali Ousta
- Al-Mouwasat University Hospital, Faculty of Medicine, Damascus University, Damascus, Syria
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16
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Fleming AM, Dickson PV, Murphy AJ. ASO Author Reflections: "Malignant" Solid Pseudopapillary Neoplasm of the Pancreas? Ann Surg Oncol 2024; 31:546-547. [PMID: 37857981 DOI: 10.1245/s10434-023-14434-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 09/26/2023] [Indexed: 10/21/2023]
Affiliation(s)
- Andrew M Fleming
- Department of Surgery, The University of Tennessee Health Science Center, Memphis, TN, USA.
- Department of Surgery, St. Jude Children's Research Hospital, Memphis, TN, USA.
| | - Paxton V Dickson
- Department of Surgery, The University of Tennessee Health Science Center, Memphis, TN, USA
- Department of Surgery, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Andrew J Murphy
- Department of Surgery, The University of Tennessee Health Science Center, Memphis, TN, USA
- Department of Surgery, St. Jude Children's Research Hospital, Memphis, TN, USA
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17
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Jiménez-Gutiérrez JM, de la Mora-Levy JG, Alonso-Lárraga JO, Hernández-Guerrero AI, Soriano-Herrera BA, Villegas-González LF, Uscanga-Domínguez LF, López-Romero S, Téllez-Ávila FI. EUS-guided tissue acquisition in patients with solid pseudopapillary neoplasms of the pancreas. Postgrad Med 2024; 136:78-83. [PMID: 38315145 DOI: 10.1080/00325481.2024.2313446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Accepted: 01/09/2024] [Indexed: 02/07/2024]
Abstract
OBJECTIVES Endoscopic ultrasound-guided tissue acquisition (EUS-TA) has been the most common method used for the preoperative cytopathological diagnosis of solid tumors of the pancreas. There are only a few reported cases about the role of endoscopic ultrasound-guided fine needle biopsy (EUS-FNB) in the pre-operative diagnosis of solid pseudopapillary neoplasms (SPN). This study aimed to evaluate the diagnostic yield of EUS-TA,including endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) andEUS-FNB, in patients with SPN. METHODS We performed a retrospective analysis of patients with EUS-TA for SPN diagnosis in 2 referral centers. The primary outcome was the diagnostic yield of EUS-TA compared to the surgical specimen. RESULTS Seventy-four patients with SPN of the pancreas were identified. Eighteen had a EUS-TA (10 EUS-FNB and 8 EUS-FNA). The median age of the patients was 31 years (IQR 21-38), and all patients were women. The most common presenting symptom was abdominal pain. Most of the tumors were in the head of the pancreas (9/18; 50%). The median tumor size by EUS was 4.5 cm (min-max 2-15 cm). The most common appearance on EUS was a solid lesion (n = 8/18, 44.4%). A definitive presurgical cytopathological diagnosis was obtained in 16/18 patients (88.8%) with EUS-TA. The sensitivity and positive predictive value of the EUS-TA were 94% each. One patient in the EUS-FNB group developed mild acute pancreatitis. CONCLUSION The diagnostic yield of the EUS-TA in SPN is high. In most cases, the diagnosis was obtained with the first procedure. No differences in the diagnostic yield or AEs between EUS-FNA vs. EUS-FNB needles were seen.
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Affiliation(s)
| | | | - Juan O Alonso-Lárraga
- Department of Endoscopy, Instituto Nacional de Cancerología, Ciudad de México, México
| | | | | | | | - Luis F Uscanga-Domínguez
- Department of Gastroenterology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, México
| | - Stephanie López-Romero
- Department of Gastroenterology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, México
| | - Félix I Téllez-Ávila
- Division of Gastroenterology & Hepatology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
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18
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Fleming AM, Hendrick LE, Yakoub D, Abdelhafeez H, Deneve JL, Langham MR, Glazer ES, Davidoff AM, Merchant NB, Dickson PV, Murphy AJ. Malignant Solid Pseudopapillary Neoplasm of the Pancreas: An Orthogonal Analysis. Ann Surg Oncol 2024; 31:475-487. [PMID: 37768414 DOI: 10.1245/s10434-023-14343-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023]
Abstract
BACKGROUND Pancreatic solid pseudopapillary neoplasms (SPN) are generally indolent; however, some patients present with "malignant" SPN. An orthogonal analysis of multiple datasets was performed to investigate the utility of complete surgical resection (CSR) for malignant SPN. METHODS A systematic review was performed for cases of malignant SPN, defined as T4, N1, and/or M1. Malignant SPN was analyzed within the National Cancer Database (NCDB) and compared with T1-3N0M0 SPN. Predictors of malignant SPN were assessed, and treatments were analyzed by using survival analysis. RESULTS The systematic review yielded 164 cases of malignant SPN. Of 31 children, only one died due to malignant SPN. Among adults, CSR was associated with improved disease-specific survival (DSS) (P = 0.0002). Chemotherapy did not improve malignant SPN DSS, whether resected (P = 0.8485) or not (P = 0.2219). Of 692 adults with SPN within the NCDB, 93 (13.4%) had malignant SPN. Pancreatic head location (odds ratio [OR] 2.174; 95% confidence interval [CI] 1.136-4.166; P = 0.0186) and tumor size (OR 1.154; 95% CI 1.079-1.235; P < 0.0001) associated with the malignant phenotype. Malignant SPN predicted decreased overall survival (OS) compared with T1-3N0M0 disease (P < 0.0001). Resected malignant SPN demonstrated improved OS (P < 0.0001), including resected stage IV malignant SPN (P = 0.0003). Chemotherapy did not improve OS for malignant SPN, whether resected (P = 0.8633) or not (P = 0.5734). Within a multivariable model, resection was associated with decreased hazard of death (hazard ratio 0.090; 95% CI 0.030-0.261; P < 0.0001). CONCLUSIONS Approximately 13% of patients with SPN present with a malignant phenotype. Pediatric cases may be less aggressive. Resection may improve survival for malignant SPN, which does not appear chemosensitive.
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Affiliation(s)
- Andrew M Fleming
- Department of Surgery, The University of Tennessee Health Science Center, Memphis, TN, USA.
- Department of Surgery, St. Jude Children's Research Hospital, Memphis, TN, USA.
| | - Leah E Hendrick
- Department of Surgery, The University of Tennessee Health Science Center, Memphis, TN, USA
| | - Danny Yakoub
- Department of Surgery, Augusta University Medical Center, Augusta, GA, USA
| | - Hafeez Abdelhafeez
- Department of Surgery, The University of Tennessee Health Science Center, Memphis, TN, USA
- Department of Surgery, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Jeremiah L Deneve
- Department of Surgery, University of North Carolina, Chapel Hill, NC, USA
| | - Max R Langham
- Department of Surgery, The University of Tennessee Health Science Center, Memphis, TN, USA
- Department of Surgery, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Evan S Glazer
- Department of Surgery, The University of Tennessee Health Science Center, Memphis, TN, USA
| | - Andrew M Davidoff
- Department of Surgery, The University of Tennessee Health Science Center, Memphis, TN, USA
- Department of Surgery, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Nipun B Merchant
- Department of Surgery, University of Miami Health System, Miami, FL, USA
| | - Paxton V Dickson
- Department of Surgery, The University of Tennessee Health Science Center, Memphis, TN, USA
| | - Andrew J Murphy
- Department of Surgery, The University of Tennessee Health Science Center, Memphis, TN, USA
- Department of Surgery, St. Jude Children's Research Hospital, Memphis, TN, USA
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19
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Baskaran S, Lodha M, Kumar RR, Elhence P. Spontaneous rupture of solid pseudopapillary epithelial neoplasm of pancreas with intraperitoneal haemorrhage. BMJ Case Rep 2023; 16:e257398. [PMID: 38081741 PMCID: PMC10728932 DOI: 10.1136/bcr-2023-257398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2023] Open
Affiliation(s)
- Suruthi Baskaran
- General Surgery, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Mahendra Lodha
- General Surgery, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Ravi Ranjan Kumar
- General Surgery, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Poonam Elhence
- Pathology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
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20
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Ishii S, Abe H, Endo S, Kondo S, Nakajima N, Hayashi K, Sakamaki A, Kobayashi T, Umezu H, Terai S. Solid pseudopapillary neoplasm in a woman presenting with acute pancreatitis: a case report and review of literature. Clin J Gastroenterol 2023; 16:937-941. [PMID: 37658160 DOI: 10.1007/s12328-023-01850-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 08/17/2023] [Indexed: 09/03/2023]
Abstract
Solid pseudopapillary neoplasm (SPN) is a rare pancreatic tumor that typically affects young women in the body and tail of the pancreas. SPN is often asymptomatic in the early stages, so it is initially discovered as a large tumor. In this report, we experienced a case of a relatively small SPN discovered in the setting of acute pancreatitis. Because there have been few reports of SPN being discovered in the situation like our case, we report this case based on a review of the literature.
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Affiliation(s)
- Soichi Ishii
- Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, 1-757 Asahimachido-ri, Chuo-ku, Niigata, 951-8510, Japan
| | - Hiroyuki Abe
- Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, 1-757 Asahimachido-ri, Chuo-ku, Niigata, 951-8510, Japan.
| | - Saori Endo
- Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, 1-757 Asahimachido-ri, Chuo-ku, Niigata, 951-8510, Japan
| | - Shuhei Kondo
- Division of Molecular and Diagnostic Pathology, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachido-ri, Chuo-ku, Niigata, 951-8510, Japan
| | - Nao Nakajima
- Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, 1-757 Asahimachido-ri, Chuo-ku, Niigata, 951-8510, Japan
| | - Kazunao Hayashi
- Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, 1-757 Asahimachido-ri, Chuo-ku, Niigata, 951-8510, Japan
| | - Akira Sakamaki
- Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, 1-757 Asahimachido-ri, Chuo-ku, Niigata, 951-8510, Japan
| | - Takashi Kobayashi
- Department of Pediatric Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachido-ri, Chuo-ku, Niigata, 951-8510, Japan
| | - Hajime Umezu
- Division of Pathology, Niigata University Medical and Dental Hospital, 1-757 Asahimachido-ri, Chuo-ku, Niigata, 951-8510, Japan
| | - Shuji Terai
- Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, 1-757 Asahimachido-ri, Chuo-ku, Niigata, 951-8510, Japan
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21
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Meliti A, Al-Maghrabi J. Solid Pseudopapillary Neoplasm of the Pancreas: A Clinicopathological Study of 12 Cases With Emphasis on Diagnostic Pitfalls. Cureus 2023; 15:e49858. [PMID: 38169685 PMCID: PMC10758586 DOI: 10.7759/cureus.49858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/03/2023] [Indexed: 01/05/2024] Open
Abstract
INTRODUCTION Solid pseudopapillary neoplasm of the pancreas (SPNP) is a rare primary neoplasm with distinct clinicopathological features. The tumor most commonly occurs in younger (premenopausal) women and is typified by low malignant potential and an excellent overall prognosis. METHODS A retrospective search over 20 years at two referral tertiary care institutions (King Faisal Hospital and Research Center and King Abdulaziz University Hospital, Jeddah, Kingdom of Saudi Arabia) revealed 12 female patients diagnosed with SPNPs. The reslts of ancillary studies performed at the time of diagnosis were also reviewed and placed in the context of current recommendations. RESULTS The clinical and pathological findings were reviewed. All patients were females, aged 18 to 30 years. Eight patients presented with abdominal pain, of which two experienced significant weight loss, and four presented with abdominal mass/discomfort. The tumor size ranged from 1.5 and 15 cm. Two cases were initially diagnosed as neuroendocrine tumors (NETs). One of the cases presented as a multifocal disease. All patients were treated surgically with a follow-up period between one and 11 years. Only one patient presented with peritoneal metastasis after seven years of follow-up, but generally, all are doing well. CONCLUSIONS We have analyzed 12 SPNP cases in our population over 20 years (2001-2021) in this study. In brief, SPNP is a low-grade malignant potential tumor. Even though SPNP is a recognized entity, diagnostic challenges can arise particularly in the setting of limited sampling. Pathologists must be aware of the classic morphological features of SPNP and the characteristic profile of immunohistochemistry and be able to differentiate SPNP from other mimickers, especially well-differentiated NETs of the pancreas, and ultimately to avoid misdiagnosis and unnecessary oncologic treatment. Adequate surgical resection with negative margins is associated with an excellent outcome.
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Affiliation(s)
- Abdelrazak Meliti
- Pathology and Laboratory Medicine, King Faisal Specialist Hospital and Research Centre, Jeddah, SAU
- Pathology, Alfaisal University College of Medicine, Riyadh, SAU
| | - Jaudah Al-Maghrabi
- Department of Pathology, Faculty of Medicine, King Abdulaziz University, Jeddah, SAU
- Pathology and Laboratory Medicine, King Faisal Specialist Hospital and Research Centre, Jeddah, SAU
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22
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Zheng R, Ghabi E, He J. Robotic Parenchymal-Sparing Pancreatectomy: A Systematic Review. Cancers (Basel) 2023; 15:4369. [PMID: 37686648 PMCID: PMC10486530 DOI: 10.3390/cancers15174369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 09/10/2023] Open
Abstract
BACKGROUND Parenchymal-sparing approaches to pancreatectomy are technically challenging procedures but allow for preserving a normal pancreas and decreasing the rate of postoperative pancreatic insufficiency. The robotic platform is increasingly being used for these procedures. We sought to evaluate robotic parenchymal-sparing pancreatectomy and assess its complication profile and efficacy. METHODS This systematic review consisted of all studies on robotic parenchymal-sparing pancreatectomy (central pancreatectomy, duodenum-preserving partial pancreatic head resection, enucleation, and uncinate resection) published between January 2001 and December 2022 in PubMed and Embase. RESULTS A total of 23 studies were included in this review (n = 788). Robotic parenchymal-sparing pancreatectomy is being performed worldwide for benign or indolent pancreatic lesions. When compared to the open approach, robotic parenchymal-sparing pancreatectomies led to a longer average operative time, shorter length of stay, and higher estimated intraoperative blood loss. Postoperative pancreatic fistula is common, but severe complications requiring intervention are exceedingly rare. Long-term complications such as endocrine and exocrine insufficiency are nearly nonexistent. CONCLUSIONS Robotic parenchymal-sparing pancreatectomy appears to have a higher risk of postoperative pancreatic fistula but is rarely associated with severe or long-term complications. Careful patient selection is required to maximize benefits and minimize morbidity.
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Affiliation(s)
- Richard Zheng
- Department of Surgery, Johns Hopkins Hospital, Johns Hopkins University, Baltimore, MD 21287, USA
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23
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Ba-Shammakh SA, Alrayes B, Awaisheh U, Hamad H, Al-Qannas MS, Abu-Obead HM. Frantz's Tumor in Focus: The Tale of a 34-Year-Old Yemeni Female Patient. Cureus 2023; 15:e45258. [PMID: 37842463 PMCID: PMC10576631 DOI: 10.7759/cureus.45258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/14/2023] [Indexed: 10/17/2023] Open
Abstract
A solid pseudopapillary tumor (SPT) of the pancreas, which mainly occurs in young women, is an uncommon pancreatic tumor that often presents diagnostic and therapeutic dilemmas. This case study discusses the symptoms and treatment approach for a 34-year-old woman from Yemen diagnosed with SPT. The patient was diagnosed through abdominal and pelvis CT scan, followed by ultrasound-guided biopsy confirming the presence of SPPT. Management through the Whipple procedure and portal vein reconstruction proved successful, with no recurrence or metastasis noted in a year-long follow-up. The importance of comprehensive understanding and surgical expertise in handling SPT is emphasized.
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Affiliation(s)
| | - Bourhan Alrayes
- Department of General Surgery, The Islamic Hospital, Amman, JOR
| | - Uwise Awaisheh
- Department of General Surgery, The Islamic Hospital, Amman, JOR
| | - Hisham Hamad
- Department of General Surgery, The Islamic Hospital, Amman, JOR
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24
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Veron Sanchez A, Santamaria Guinea N, Cayon Somacarrera S, Bennouna I, Pezzullo M, Bali MA. Rare Solid Pancreatic Lesions on Cross-Sectional Imaging. Diagnostics (Basel) 2023; 13:2719. [PMID: 37627978 PMCID: PMC10453474 DOI: 10.3390/diagnostics13162719] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/15/2023] [Accepted: 08/18/2023] [Indexed: 08/27/2023] Open
Abstract
Several solid lesions can be found within the pancreas mainly arising from the exocrine and endocrine pancreatic tissue. Among all pancreatic malignancies, the most common subtype is pancreatic ductal adenocarcinoma (PDAC), to a point that pancreatic cancer and PDAC are used interchangeably. But, in addition to PDAC, and to the other most common and well-known solid lesions, either related to benign conditions, such as pancreatitis, or not so benign, such as pancreatic neuroendocrine neoplasms (pNENs), there are solid pancreatic lesions considered rare due to their low incidence. These lesions may originate from a cell line with a differentiation other than exocrine/endocrine, such as from the nerve sheath as for pancreatic schwannoma or from mesenchymal cells as for solitary fibrous tumour. These rare solid pancreatic lesions may show a behaviour that ranges in a benign to highly aggressive malignant spectrum. This review includes cases of an intrapancreatic accessory spleen, pancreatic tuberculosis, solid serous cystadenoma, solid pseudopapillary tumour, pancreatic schwannoma, purely intraductal neuroendocrine tumour, pancreatic fibrous solitary tumour, acinar cell carcinoma, undifferentiated carcinoma with osteoclastic-like giant cells, adenosquamous carcinoma, colloid carcinoma of the pancreas, primary leiomyosarcoma of the pancreas, primary and secondary pancreatic lymphoma and metastases within the pancreas. Therefore, it is important to determine the correct diagnosis to ensure optimal patient management. Because of their rarity, their existence is less well known and, when depicted, in most cases incidentally, the correct diagnosis remains challenging. However, there are some typical imaging features present on cross-sectional imaging modalities that, taken into account with the clinical and biological context, contribute substantially to achieve the correct diagnosis.
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Affiliation(s)
- Ana Veron Sanchez
- Hôpital Universitaire de Bruxelles, Institut Jules Bordet, 1070 Brussels, Belgium; (I.B.)
| | | | | | - Ilias Bennouna
- Hôpital Universitaire de Bruxelles, Institut Jules Bordet, 1070 Brussels, Belgium; (I.B.)
| | - Martina Pezzullo
- Hôpital Universitaire de Bruxelles, Hôpital Erasme, 1070 Brussels, Belgium
| | - Maria Antonietta Bali
- Hôpital Universitaire de Bruxelles, Institut Jules Bordet, 1070 Brussels, Belgium; (I.B.)
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25
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Liang H, Du S, Yan G, Zhou Y, Yang T, Zhang Z, Luo C, Liao H, Li Y. Dual-energy CT of the pancreas: comparison between virtual non-contrast images and true non-contrast images in the detection of pancreatic lesion. Abdom Radiol (NY) 2023; 48:2596-2603. [PMID: 37210407 DOI: 10.1007/s00261-023-03914-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/07/2023] [Accepted: 04/10/2023] [Indexed: 05/22/2023]
Abstract
PURPOSE To evaluate the image quality and diagnostic performance for pancreatic lesion between true non-contrast (TNC) and virtual non-contrast (VNC) images obtained from the dual-energy computed tomography (DECT). METHODS One hundred six patients with pancreatic mass underwent contrast-enhanced DECT examinations were retrospectively included in this study. VNC images of the abdomen were generated from late arterial (aVNC) and portal (pVNC) phases. For quantitative analysis, the attenuation differences and reproducibility of abdominal organs were compared between TNC and aVNC/pVNC measurements. Qualitatively image quality was assessed by two radiologists using a five-point scale, and they independently compared the detection accuracy of pancreatic lesions between TNC and aVNC/pVNC images. The volume CT dose index (CTDIvol) and size-specific dose estimates (SSDE) were recorded to evaluate the potential dose reduction when using VNC reconstruction to replace the unenhanced phase. RESULTS A total of 78.38% (765/976) of the attenuation measurement pairs were reproducible between TNC and aVNC images, and 71.0% (693/976) between TNC and pVNC images. In triphasic examinations, a total of 108 pancreatic lesions were found in 106 patients, and no significant difference in detection accuracy was found between TNC and VNC images (p = 0.587-0.957). Qualitatively, image quality was rated diagnostic (score ≥ 3) in all the VNC images. Calculated CTDIvol and SSDE reduction of about 34% could be achieved by omitting the non-contrast phase. CONCLUSION VNC images of DECT provide diagnostic image quality and accurate pancreatic lesions detection, which are a promising alternative to unenhanced phase with a substantial reduction of radiation exposure in clinical routine.
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Affiliation(s)
- Hongwei Liang
- Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Silin Du
- Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Gaowu Yan
- Department of Radiology, Suining Central Hospital, Suining, 629000, China
| | - Yang Zhou
- Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Tianyu Yang
- Department of Nuclear Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Zhiwei Zhang
- Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Chenyi Luo
- Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Hongfan Liao
- Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Yongmei Li
- Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuzhong District, Chongqing, 400016, China.
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Jayapal L, Kumar SR, Jebakumar GS, Tasgaonkar SS, Swain SK, Munikrishnan V, Balachandar TG. Solid Pseudopapillary Neoplasm of the Pancreas: Unraveling Insights from a Single Institutional Study Emphasizing Preoperative Diagnosis of a Rare Tumor. Euroasian J Hepatogastroenterol 2023; 13:50-54. [PMID: 38222960 PMCID: PMC10785128 DOI: 10.5005/jp-journals-10018-1394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 09/04/2023] [Indexed: 01/16/2024] Open
Abstract
Aim Solid pseudopapillary neoplasm (SPN), a slow-growing pancreatic tumor with a vague clinical presentation and non-specific radiological features, is rather uncommon. We share our experience emphasizing on preoperative diagnosis and the correlation with final histopathological examination. Materials and methods This is a retrospective analysis of the 468 patients who underwent pancreas-related surgery at our institution between January 2013 and July 2022. Demographic characteristics, symptoms at presentation, preoperative serum calcium carbohydrate antigen (CA 19-9), lesion characteristics on cross-sectional diagnostic imaging, surgical technique, complications in postoperative period, length of stay, histopathological features, and 3-year follow-up findings of the patients with SPN of pancreas were evaluated. Results The male-to-female ratio was 1:11 and the mean age at presentation was 33.3 ± 9.5 years. Upper abdomen discomfort was the most common presenting complaint (91%). And five patients had findings suggestive of SPN on preoperative CECT abdomen, and the remaining six individuals were diagnosed solely based on final histological examination. The tumor's median diameter was 5.6 cm (range, 4.1-7.9). The distal body and tail of pancreas was the most common location (63%), followed by the head (36%), and was managed with distal pancreatectomy with or without spleen preservation and Whipple's procedure, respectively. One patient developed grade III Clavien-Dindo complication. The average length of in-hospital stay was 8.27±2.72 days. None of the patients had recurrence on follow-up. Conclusion Solid pseudopapillary neoplasm of the pancreas is often misdiagnosed preoperatively. Endoscopic ultrasound-guided FNA with IHC will be beneficial to diagnose it preoperatively especially in small-sized tumors with atypical features. Complete surgical resection with adequate margins without routine lymphadenectomy is curative in resectable tumors. How to cite this article Jayapal L, Kumar SR, Jebakumar GS, et al. Solid Pseudopapillary Neoplasm of the Pancreas: Unraveling Insights from a Single Institutional Study Emphasizing Preoperative Diagnosis of a Rare Tumor. Euroasian J Hepato-Gastroenterol 2023;13(2):50-54.
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Affiliation(s)
- Loganathan Jayapal
- Department of Surgical Gastroenterology, Apollo Hospitals, Chennai, Tamil Nadu, India
| | - Santhosh R Kumar
- Department of Surgical Gastroenterology, Apollo Hospitals, Chennai, Tamil Nadu, India
| | | | - Siddesh S Tasgaonkar
- Department of Surgical Gastroenterology, Apollo Hospitals, Chennai, Tamil Nadu, India
| | - Sudeepta Kumar Swain
- Department of Surgical Gastroenterology, Apollo Hospitals, Chennai, Tamil Nadu, India
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27
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Kumar NA, DSouza AS, Usman N, Bishnoi AK. Agenesis of Dorsal Pancreas and Solid Pseudopapillary Tumor: Ventral Pancreas Preserving Portal Vein Resection and Reconstruction Using a Peritoneal Graft. Cureus 2023; 15:e40916. [PMID: 37496552 PMCID: PMC10366649 DOI: 10.7759/cureus.40916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/24/2023] [Indexed: 07/28/2023] Open
Abstract
A diabetic lady in her 40s was referred to surgical oncologists with epigastric pain associated with vomiting. Computed Tomography (CT) Abdomen with contrast demonstrated a mass arising from the head of the pancreas with the absence of dorsal pancreas, confirmed on magnetic resonance cholangio-pancreatography (MRCP). A core needle biopsy was done, and the tumor was revealed to be a solid pseudopapillary epithelial neoplasm. She underwent sub-total pancreatectomy preserving the duodenum and ventral pancreas as there was adequate free margin; however due to the tumor abutting the anterior wall of the portal vein, it was resected, and reconstruction was done using a peritoneal graft. The patient made a good recovery without any significant post-operative events.
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Affiliation(s)
- Naveena An Kumar
- Surgical Oncology, Kasturba Medical College, Manipal, Udupi, IND
| | - Arika S DSouza
- Surgical Oncology, Kasturba Medical College, Manipal, Udupi, IND
| | - Nawaz Usman
- Surgical Oncology, Kasturba Medical College, Manipal, Udupi, IND
| | - Arvind K Bishnoi
- Cardiothoracic Surgery, Kasturba Medical College, Manipal, Udupi, IND
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28
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Vieira RMF, Souza Junior ASD, Kerche LE. CYSTIC PANCREATIC LESIONS: IMAGING VERSUS ANATOMOPATHOLOGICAL FINDINGS-HOW TO IMPROVE DIAGNOSTIC ACCURACY? ARQUIVOS BRASILEIROS DE CIRURGIA DIGESTIVA : ABCD = BRAZILIAN ARCHIVES OF DIGESTIVE SURGERY 2023; 36:e1735. [PMID: 37255104 DOI: 10.1590/0102-672020230017e1735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Accepted: 01/15/2023] [Indexed: 06/01/2023]
Abstract
BACKGROUND Pancreatic cystic lesions are a group of pancreatic neoplasms with different behavior and risk of malignancy. Imaging diagnosis and differentiation of these lesions remain a challenge. AIMS The aim of this study was to evaluate the agreement between computed tomography and/or magnetic resonance imaging and post-operative pathologic diagnoses of Pancreatic cystic lesions in a University Hospital of São Paulo State. METHODS A total of 39 patients with surgically diagnosed Pancreatic cystic lesions were enrolled, as a study cohort from 2009 to 2019. Preoperative radiological and final pathological diagnosis was correlated to measure computed tomography and/or magnetic resonance imaging diagnostic. Pancreatic adenocarcinoma, choledochal pancreatic cyst, mucinous cystadenoma, serous cystadenoma, intraductal papillary mucinous neoplasms, and pancreatic pseudocyst were classified as neoplastic cysts. RESULTS It was noted that 27 patients (69.23%) had preoperative computed tomography and magnetic resonance imaging, 11 patients (28.20%) had preoperative computed tomography only, and 1 patient had preoperative magnetic resonance imaging only. The values for diagnoses made only with computed tomography (p=0.47) and from the combination of computed tomography+magnetic resonance imaging (p=0.50) did also point to moderate agreement with the anatomopathological findings. The values pointed to a fair agreement for the diagnosis of mucinous cystadenoma (p=0.3), moderate agreement for intraductal papillary mucinous neoplasms (p= 0.41), good agreement for serous cystadenoma (p=0.79), and excellent agreement for choledochal pancreatic cyst (p=1), pancreatic pseudocyst (p=0.84), and Frantz tumor (p=1) (p<0.05). CONCLUSIONS The findings of computed tomography and/or magnetic resonance imaging have an equivalent diagnostic agreement with an anatomopathological diagnosis for differentiating benign from malignant Pancreatic cystic lesions and in suggesting a specific diagnosis. There is no statistical difference between the use of computed tomography alone and computed tomography+magnetic resonance imaging in the improvement of diagnostic accuracy.
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Affiliation(s)
- Rafael Mello Fontolan Vieira
- Cancer Regional Hospital, Hepatobiliopancreatic Oncological Digestive Surgery - Presidente Prudente (SP), Brazil
| | | | - Leandra Ernst Kerche
- Faculty of Medicine of Oeste Paulista, Functional Sciences Department - Presidente Prudente (SP), Brazil
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29
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Kumar S, Singh RK, Agrawal L, Kumar S, Saini T, Harisankar AG, Mandal M. Solid Pseudopapillary Neoplasm of the Pancreas: A Single-Center Experience of a Rare Neoplasm. Cureus 2023; 15:e39162. [PMID: 37332467 PMCID: PMC10275745 DOI: 10.7759/cureus.39162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/17/2023] [Indexed: 06/20/2023] Open
Abstract
BACKGROUND Solid pseudopapillary neoplasm (SPN) of the pancreas is an extremely rare pancreatic exocrine tumor. The study aims to report our experience with the SPN of the pancreas. METHODS A retrospective analysis of the prospectively maintained database was carried out of all the cases diagnosed and treated as SPN between January 2019 and January 2023. Patient characteristics including age, gender, clinical presentation, laboratory examinations, imaging features, surgical details, and histopathological and immunohistochemistry details were analyzed. RESULTS During this period, eight cases were diagnosed with SPN. All patients were female with a median age of 25.75 years (range 14-55 years). All cases presented with pain in the abdomen, and four patients had a mass per abdomen. In all the cases, contrast-enhanced computed tomography (CECT) abdomen was done for the diagnosis and had preoperative suspicion of the pseudopapillary tumor. In four cases, the tumor was located in the head region, while in four cases, the tumor was in the body and tail of the pancreas. The median size of the tumor was 12 cm (range 3.5-15 cm). Three cases underwent Whipple's procedure and one patient was unresectable. Two out of four patients with body and tail tumors underwent distal pancreatectomy with splenectomy, one underwent spleen-preserving distal pancreatectomy, and one patient underwent central pancreatectomy. CONCLUSION SPN is a rare neoplasm that primarily affects young women. Clinicopathologic and immunohistochemical features are diagnostic. Surgical resection is generally curative with a good long-term outcome.
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Affiliation(s)
- Sanjay Kumar
- Department of Surgical Gastroenterology and Liver Transplant, Indira Gandhi Institute of Medical Sciences, Patna, IND
| | - Rakesh Kumar Singh
- Department of Surgical Gastroenterology and Liver Transplant, Indira Gandhi Institute of Medical Sciences, Patna, IND
| | - Lajpat Agrawal
- Department of Surgical Gastroenterology and Liver Transplant, Indira Gandhi Institute of Medical Sciences, Patna, IND
| | - Saket Kumar
- Department of Surgical Gastroenterology and Liver Transplant, Indira Gandhi Institute of Medical Sciences, Patna, IND
| | - Tushar Saini
- Department of Surgical Gastroenterology and Liver Transplant, Indira Gandhi Institute of Medical Sciences, Patna, IND
| | - A G Harisankar
- Department of Surgical Gastroenterology and Liver Transplant, Indira Gandhi Institute of Medical Sciences, Patna, IND
| | - Manish Mandal
- Department of Surgical Gastroenterology and Liver Transplant, Indira Gandhi Institute of Medical Sciences, Patna, IND
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30
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Pawlak KM, Tehami N, Maher B, Asif S, Rawal KK, Balaban DV, Tag-Adeen M, Ghalim F, Abbas WA, Ghoneem E, Ragab K, El-Ansary M, Kadir S, Amin S, Siau K, Wiechowska-Kozlowska A, Mönkemüller K, Abdelfatah D, Abdellatef A, Lakhtakia S, Okasha HH. Role of endoscopic ultrasound in the characterization of solid pseudopapillary neoplasm of the pancreas. World J Gastrointest Endosc 2023; 15:273-284. [PMID: 37138939 PMCID: PMC10150282 DOI: 10.4253/wjge.v15.i4.273] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/17/2023] [Accepted: 03/29/2023] [Indexed: 04/14/2023] Open
Abstract
BACKGROUND Solid pseudopapillary neoplasm (SPN) is an uncommon pathology of the pancreas with unpredictable malignant potential. Endoscopic ultrasound (EUS) assessment plays a vital role in lesion characterization and confirmation of the tissue diagnosis. However, there is a paucity of data regarding the imaging assessment of these lesions.
AIM To determine the characteristic EUS features of SPN and define its role in preoperative assessment.
METHODS This was an international, multicenter, retrospective, observational study of prospective cohorts from 7 large hepatopancreaticobiliary centers. All cases with postoperative histology of SPN were included in the study. Data collected included clinical, biochemical, histological and EUS characteristics.
RESULTS One hundred and six patients with the diagnosis of SPN were included. The mean age was 26 years (range 9 to 70 years), with female predominance (89.6%). The most frequent clinical presentation was abdominal pain (80/106; 75.5%). The mean diameter of the lesion was 53.7 mm (range 15 to 130 mm), with the slight predominant location in the head of the pancreas (44/106; 41.5%). The majority of lesions presented with solid imaging features (59/106; 55.7%) although 33.0% (35/106) had mixed solid/cystic characteristics and 11.3% (12/106) had cystic morphology. Calcification was observed in only 4 (3.8%) cases. Main pancreatic duct dilation was uncommon, evident in only 2 cases (1.9%), whilst common bile duct dilation was observed in 5 (11.3%) cases. One patient demonstrated a double duct sign at presentation. Elastography and Doppler evaluation demonstrated inconsistent appearances with no emergence of a predictable pattern. EUS guided biopsy was performed using three different types of needles: Fine needle aspiration (67/106; 63.2%), fine needle biopsy (37/106; 34.9%), and Sonar Trucut (2/106; 1.9%). The diagnosis was conclusive in 103 (97.2%) cases. Ninety-seven patients were treated surgically (91.5%) and the post-surgical SPN diagnosis was confirmed in all cases. During the 2-year follow-up period, no recurrence was observed.
CONCLUSION SPN presented primarily as a solid lesion on endosonographic assessment. The lesion tended to be located in the head or body of the pancreas. There was no consistent characteristic pattern apparent on either elastography or Doppler assessment. Similarly SPN did not frequently cause stricture of the pancreatic duct or common bile duct. Importantly, we confirmed that EUS-guided biopsy was an efficient and safe diagnostic tool. The needle type used does not appear to have a significant impact on the diagnostic yield. Overall SPN remains a challenging diagnosis based on EUS imaging with no pathognomonic features. EUS guided biopsy remains the gold standard in establishing the diagnosis.
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Affiliation(s)
- Katarzyna M Pawlak
- Endoscopy Unit, Department of Gastroenterology, Hospital of The Ministry of Interior and Administration, Szczecin 01-218, Poland
| | - Nadeem Tehami
- Interventional Endoscopy Unit, University Hospital Southampton NHS Foundation Trust, 3AX PO, United Kingdom
| | - Ben Maher
- Interventional Endoscopy Unit, University Hospital Southampton NHS Foundation Trust, 3AX PO, United Kingdom
| | - Shujaath Asif
- Consultant Gastroenterologist, AIG Hospitals, Hyderabad 500032, India
| | - Krishn Kant Rawal
- Department of Gastroenterology, Prime Institute of Digestive Sciences, Rajkot 360001, India
| | - Daniel Vasile Balaban
- Department of Gastroenterology, Central Military Emergency University Hospital, Carol Davila University of Medicine and Pharmacy, Bucharest 010011, Romania
| | - Mohammed Tag-Adeen
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Qena Faculty of Medicine, South Valley University, Qena 83511, Egypt
- Department of Endoscopy, Shefa Al-Orman Hospital, Luxor 85951, Egypt
| | - Fahd Ghalim
- Interventional Endoscopy Unit, Sainte Marie Hospital, OSNY 95520, France
| | - Wael A Abbas
- Department of Internal Medicine, Gastroenterology Unit, Faculty of Medicine, Assuit University, Assuit 71511, Egypt
| | - Elsayed Ghoneem
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Mansoura University, Mansoura 35511, Egypt
| | - Khaled Ragab
- Department of Hepatology and Gastroenterology, Theodor Bilharz Research Institute, Giza 12511, Egypt
| | - Mahmoud El-Ansary
- Department of Hepatology & Gastroenterology, Theodor Bilharz Research Institute, Giza 12511, Egypt
| | - Shanil Kadir
- Department of Gastroenterology, Liaquat National Hospital & Medical College, Karachi 75900, Pakistan
| | - Sunil Amin
- Division of Digestive and Liver Diseases, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL 32118, United States
| | - Keith Siau
- Department of Gastroenterology, Royal Cornwall Hospitals NHS Trust, Truro, Cornwall, United Kingdom
| | | | - Klaus Mönkemüller
- Department of Gastroenterology, Virginia Tech Carilion School of Medicine, Roanoke, Virginia, AL 35294, United States
| | - Dalia Abdelfatah
- Department of Cancer Epidemiology and Biostatistics, National Cancer Institute, Cairo University, Cairo 11511, Egypt
| | - Abeer Abdellatef
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kasr Al-Aini School of Medicine, Faculty of Medicine, Cairo University, Cairo 11511, Egypt
| | - Sundeep Lakhtakia
- Consultant Gastroenterologist, AIG Hospitals, Hyderabad 500032, India
| | - Hussein Hassan Okasha
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kasr Al-Aini School of Medicine, Faculty of Medicine, Cairo University, Cairo 11451, Egypt
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Sharaf Aldeen R, Al Laham O, Ibrahim Basha Z, Zeen Aldeen H, Maged Agha A, Hamed H. Diagnosis and surgical management of a rare neoplastic entity: Solid Pseudopapillary Neoplasm of the Pancreas. Int J Surg Case Rep 2023; 105:108058. [PMID: 36989625 PMCID: PMC10074570 DOI: 10.1016/j.ijscr.2023.108058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/21/2023] [Accepted: 03/22/2023] [Indexed: 03/29/2023] Open
Abstract
INTRODUCTION AND IMPORTANCE Solid Pseudopapillary Tumors of the Pancreas is an extremely rare pancreatic neoplastic entity that makes up barely 3 % of all types of exocrine pancreatic neoplasia. Symptoms vary and none of them are specific or pathognomonic for the disease. Therefore, delayed treatment or misdiagnoses could be the result. In turn, patients' morbidity and mortality significantly rise. Diagnosing or suspecting this type of critical type of neoplasia in the preoperative phase is a key component to performing appropriate and curative surgical interventions that result in increased patient survivability. CASE PRESENTATION We hereby present the rare case of a previously healthy 20-year-old female whose chief complaints were chronic epigastric and left hypochondriac region pain and discomfort along with loss of appetite. During our preoperative radiological investigation, we found a cystic mass with well-defined borders located between the head of the pancreas and the second part of the duodenum. It measured (63 × 45 mm). No metastasis or lymph node involvement was elicited. CLINICAL DISCUSSION The tumor was utterly resected via a successful Whipple procedure. A definitive diagnosis of a Solid Pseudopapillary Tumor was reached following meticulous histopathological and immunohistochemical analysis of the resected specimens. CONCLUSION Based on our review of the published literature, no previously published cases from our country of pancreatic Solid Pseudopapillary Tumors exist. Documentation of this rare neoplasia is warranted to raise awareness and to establish the necessary clinical protocols to optimally diagnose, timely treat, and adequately follow up on patients who present with this malignancy.
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Affiliation(s)
- Rahaf Sharaf Aldeen
- Department of Surgery, Al-Mouwasat University Hospital, Damascus University, Damascus, (The) Syrian Arab Republic; Department of Surgery, Al Assad University Hospital, Damascus University, Damascus, (The) Syrian Arab Republic; Faculty of Medicine, Damascus University, Damascus, (The) Syrian Arab Republic.
| | - Omar Al Laham
- Faculty of Medicine, Damascus University, Damascus, (The) Syrian Arab Republic.
| | - Zein Ibrahim Basha
- Faculty of Medicine, Damascus University, Damascus, (The) Syrian Arab Republic; Department of Pathology, Al Assad University Hospital, Damascus University, Damascus, (The) Syrian Arab Republic.
| | - Hasan Zeen Aldeen
- Department of Surgery, Al-Mouwasat University Hospital, Damascus University, Damascus, (The) Syrian Arab Republic; Department of Surgery, Al Assad University Hospital, Damascus University, Damascus, (The) Syrian Arab Republic; Faculty of Medicine, Damascus University, Damascus, (The) Syrian Arab Republic.
| | - Abdulmotaleb Maged Agha
- Department of Surgery, Al-Mouwasat University Hospital, Damascus University, Damascus, (The) Syrian Arab Republic; Department of Surgery, Al Assad University Hospital, Damascus University, Damascus, (The) Syrian Arab Republic; Faculty of Medicine, Damascus University, Damascus, (The) Syrian Arab Republic.
| | - Hamoud Hamed
- Department of Surgery, Al Assad University Hospital, Damascus University, Damascus, (The) Syrian Arab Republic; Department of Surgery, Faculty of Medicine, Damascus University, Damascus, (The) Syrian Arab Republic.
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Gao Y, Guo F, Lu Z, Xi C, Wei J, Jiang K, Miao Y, Wu J, Chen J. Perioperative safety and prognosis following parenchyma-preserving surgery for solid pseudopapillary neoplasm of the pancreas. World J Surg Oncol 2023; 21:119. [PMID: 37004027 PMCID: PMC10064731 DOI: 10.1186/s12957-023-03003-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 03/22/2023] [Indexed: 04/03/2023] Open
Abstract
BACKGROUND/OBJECTIVES To evaluate perioperative safety and outcome of parenchyma-preserving pancreatectomy and risk factors of metastasis and recurrence for patients with solid pseudopapillary neoplasm (SPN). METHODS Demographic data, operative and pathological parameter, follow-up data of patients with SPN undergoing their first operation were collected in our single center from May 2016 to October 2021 and compared between regular pancreatectomy group and parenchyma-preserving surgery group. Risk factors for metastasis and recurrence were investigated. RESULTS A total of 194 patients were included, 154 of whom were female and the average age of all patients was 33 years old. Most patients were asymptomatic, with the most common complaint being abdominal pain or discomfort. Of them, 62 patients underwent parenchyma-preserving pancreatectomy including middle segment pancreatectomy and enucleation, and 132 patients underwent regular pancreatectomy including pancreaticoduodenectomy, distal pancreatectomy and total pancreatectomy. Patients in the parenchyma-preserving surgery group had a shorter duration of operation, less intraoperative bleeding, and decreased risk of combined organ removal and blood transfusion, with no statistical significance yet. The two groups exhibited a similar incidence of postoperative complications including grade B and C pancreatic fistula, delayed gastric emptying, postoperative pancreatic hemorrhage, and other complications, as well as radiological intervention, relaparotomy and the length of postoperative hospital stay. There were no perioperative deaths. All the patients, except 18 of those who discontinued follow-up, were alive with a median follow-up time of 31 months. Three patients in the regular pancreatectomy group were observed to have liver metastasis, and no metastasis was observed in the parenchyma-preserving surgery group. Significant risk factors for tumor metastasis and recurrence were tumor size, angioinvasion, and nerve infiltration. CONCLUSIONS Parenchyma-preserving surgery did not significantly increase the frequency of perioperative complications or recurrence and might be preferable if comprehensive conditions allow.
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Affiliation(s)
- Yong Gao
- Pancreas Center, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, 210029, People's Republic of China
| | - Feng Guo
- Pancreas Center, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, 210029, People's Republic of China
| | - Zipeng Lu
- Pancreas Center, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, 210029, People's Republic of China
| | - Chunhua Xi
- Pancreas Center, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, 210029, People's Republic of China
| | - Jishu Wei
- Pancreas Center, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, 210029, People's Republic of China
| | - Kuirong Jiang
- Pancreas Center, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, 210029, People's Republic of China
| | - Yi Miao
- Pancreas Center, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, 210029, People's Republic of China
- Pancreas Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, People's Republic of China
| | - Junli Wu
- Pancreas Center, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, 210029, People's Republic of China.
| | - Jianmin Chen
- Pancreas Center, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, 210029, People's Republic of China.
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Nakamura K, Ishii Y, Serikawa M, Tsuboi T, Hirano T, Nakamura S, Ikemoto J, Uemura K, Arihiro K, Oka S. A case of middle-aged male with multicentric solid pseudopapillary neoplasm of the pancreas. Clin J Gastroenterol 2023; 16:488-494. [PMID: 36952173 DOI: 10.1007/s12328-023-01785-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 03/10/2023] [Indexed: 03/24/2023]
Abstract
Solid pseudopapillary neoplasm (SPN) of the pancreas is a low-grade, malignant pancreatic tumor that occurs predominantly in young females. In this report, an extremely rare case of multicentric SPNs in a middle-aged male is discussed. A 55-year-old man was incidentally found to have a mass in the pancreatic body on abdominal ultrasonography during a medical checkup. Contrast-enhanced computed tomography (CT) revealed masses with 50-mm and 25-mm diameters with internal calcification in the pancreatic body and tail, respectively. These masses had a gradually increasing enhancement pattern though the center of the pancreatic body mass and the periphery of the pancreatic tail lesion were non-enhancing. Magnetic resonance imaging revealed a hyperintense signal in the mass of the pancreatic tail suggestive of hemorrhage on T1-weighted imaging. Positron emission tomography-CT revealed abnormal uptake of fluorodeoxyglucose in both lesions. Endoscopic ultrasound-guided fine needle aspiration was performed on both lesions, and tumor tissue with a solid proliferation of poorly pleomorphic small cells was observed. The tumor cells were positive for CD10 in the cytoplasm and β-catenin in the nucleus. The patient was diagnosed with SPNs and underwent a successful distal pancreatectomy.
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Affiliation(s)
- Kazuki Nakamura
- Department of Gastroenterology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
| | - Yasutaka Ishii
- Department of Gastroenterology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan.
| | - Masahiro Serikawa
- Department of Gastroenterology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
| | - Tomofumi Tsuboi
- Department of Gastroenterology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
| | - Tetsuro Hirano
- Department of Gastroenterology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
| | - Shinya Nakamura
- Department of Gastroenterology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
| | - Juri Ikemoto
- Department of Gastroenterology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
| | - Kenichiro Uemura
- Department of Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Koji Arihiro
- Department of Anatomical Pathology, Hiroshima University Hospital, Hiroshima, Japan
| | - Shiro Oka
- Department of Gastroenterology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
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The Role of MRI in the Diagnosis of Solid Pseudopapillary Neoplasm of the Pancreas and Its Mimickers: A Case-Based Review with Emphasis on Differential Diagnosis. Diagnostics (Basel) 2023; 13:diagnostics13061074. [PMID: 36980388 PMCID: PMC10046973 DOI: 10.3390/diagnostics13061074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/05/2023] [Accepted: 03/09/2023] [Indexed: 03/15/2023] Open
Abstract
Solid pseudopapillary neoplasm (SPN) is rare pancreatic tumor occurring most commonly in young females. The typical imaging appearance of SPN is of well-defined, encapsulated, and large heterogeneous tumors, consisting of solid and cystic components due to various degrees of intralesional hemorrhage and necrosis. However, atypical imaging presentation in the form of small solid tumors or uniformly cystic lesions might also be seen, which can be explained by specific pathological characteristics. Other imaging features such as a round shape, the absence of main pancreatic duct dilatation, and slow growth, in combination with vague symptoms, favor the diagnosis of SPNs. Nevertheless, the radiological findings of SPN might overlap with other solid and cystic pancreatic neoplasms, such as neuroendocrine tumors, serous and mucinous neoplasms, and even small pancreatic adenocarcinomas. In addition, a few benign non-tumorous conditions including walled-of-necrosis, and intrapancreatic accessory spleen may also pose diagnostic dilemmas simulating SPNs on imaging studies. The aim of this manuscript is to provide a comprehensive overview of the typical and atypical imaging features of SPNs and to describe useful tips for differential diagnosis with its potential mimickers.
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Toshima F, Inoue D, Kozaka K, Komori T, Takamatsu A, Katagiri A, Gabata T. Can solid pseudopapillary neoplasm of the pancreas without degeneration be diagnosed with imaging? a comparison study of the solid component of solid pseudopapillary neoplasm, neuroendocrine neoplasm, and ductal adenocarcinoma. Abdom Radiol (NY) 2023; 48:936-951. [PMID: 36708377 DOI: 10.1007/s00261-023-03814-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 01/10/2023] [Accepted: 01/11/2023] [Indexed: 01/29/2023]
Abstract
PURPOSE To investigate the MR findings of the solid components within pancreatic solid pseudopapillary neoplasms (SPNs) to characterize solid SPN without degeneration. METHODS After case matching, 23 patients with SPNs, 23 with pancreatic neuroendocrine neoplasms (PNENs), and 46 pancreatic ductal adenocarcinomas (PDACs) were included in this retrospective comparative study. The MR findings of the solid components within the pancreatic tumors were assessed qualitatively and semi-quantitatively. RESULTS In the qualitative assessment, significant differences were noted in T2-weighted imaging and MR cholangiopancreatography (MRCP). SPNs with a score of 4-5 (iso- to hyper-intense compared with the renal cortex) were observed in 18/19 (94.7%) by reader 1 and 15/19 (78.9%) by reader 2 (score 5, 52.6% and 47.4%) on fast spin-echo (FSE) T2-weighted imaging. On MRCP, the two readers identified 12 (63.2%) and 8 (42.1%) SPNs, respectively. The semi-quantitative signal-intensity ratio (SIR, signal intensity of tumor/signal intensity of the pancreatic parenchyma) of SPNs on FSE T2-weighted imaging was significantly higher (mean, 1.99-2.01) than that of PNENs (1.30-1.31) or PDACs (1.26-1.28). The sensitivity/specificity of 'hyper' on T2-weighted imaging (qualitative score of 4-5, or SIR of ≥ 1.5) were 78.9-100.0%/63.8-79.7%. The sensitivity/specificity of 'remarkably hyper' (score of 5, SIR of ≥ 2.0, or visible on MRCP) or salt-and-pepper pattern were 36.8-68.4%/85.5-98.6%. CONCLUSION T2-weighted imaging may be the key sequence for solid SPN. Solid tumors with hyper-intensity on T2-weighted imaging (especially, more hyper-intense than the renal cortex, more than twice the signal of the pancreatic parenchyma, depicted on MRCP, or salt-and-pepper appearance) may be suspected to be SPNs.
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Affiliation(s)
- Fumihito Toshima
- Department of Radiology, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-Machi, Kanazawa, Ishikawa, 920-8640, Japan.
| | - Dai Inoue
- Department of Radiology, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-Machi, Kanazawa, Ishikawa, 920-8640, Japan
| | - Kazuto Kozaka
- Department of Radiology, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-Machi, Kanazawa, Ishikawa, 920-8640, Japan
| | - Takahiro Komori
- Department of Radiology, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-Machi, Kanazawa, Ishikawa, 920-8640, Japan
| | - Atsushi Takamatsu
- Department of Radiology, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-Machi, Kanazawa, Ishikawa, 920-8640, Japan
| | - Ayako Katagiri
- Department of Radiology, Ishikawa Prefectural Central Hospital, 2-1, Kuratsuki-Higashi, Kanazawa, Ishikawa, 920-8530, Japan
| | - Toshifumi Gabata
- Department of Radiology, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-Machi, Kanazawa, Ishikawa, 920-8640, Japan
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Ogawa D, Okabe H, Masuda T, Sugita H. Long-term survivor of giant pancreatic solid pseudopapillary neoplasm with splenic infiltration and lymph node metastasis. BMJ Case Rep 2023; 16:e253554. [PMID: 36731944 PMCID: PMC9896223 DOI: 10.1136/bcr-2022-253554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
A man in his 70s with a 10 cm abdominal mass in the tail of the pancreas was diagnosed with pancreatic tail cancer. Distal pancreatectomy with curative intent was performed. Since tumour invasion of the spleen and transverse colon was suspected, pancreatectomy with splenectomy, left adrenalectomy and partial transverse colectomy was performed. Pathological examination of the resected specimen showed a giant pancreatic tumour, and a diagnosis of locally invasive solid pseudopapillary neoplasm (SPN) of the pancreas was made. The patient achieved 8-year survival without any recurrences. We herein report a very rare case of a giant pancreatic SPN with splenic infiltration and lymph node metastasis that was cured by resection.
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Affiliation(s)
- Daisuke Ogawa
- Department of Surgery, Kumamoto Regional Medical Center, Kumamoto, Japan
| | - Hirohisa Okabe
- Department of Surgery, Kumamoto Regional Medical Center, Kumamoto, Japan
| | - Toshiro Masuda
- Department of Surgery, Kumamoto Regional Medical Center, Kumamoto, Japan
| | - Hiroki Sugita
- Department of Surgery, Kumamoto Regional Medical Center, Kumamoto, Japan
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37
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Sun G, Fang K, Fu X, Peng L, Shu J, Tu Y, Li Y, Xiao W. Solid Pseudopapillary Neoplasm of the Pancreas: A Multi-Institution Study of 118 Cases. Pancreas 2023; 52:e121-e126. [PMID: 37523603 DOI: 10.1097/mpa.0000000000002219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
OBJECTIVES The aim of the study is to summary the clinicopathological characteristics and surgical outcomes of solid pseudopapillary neoplasm (SPN) of the pancreas. METHODS In this retrospective study, the information of 118 patients with SPN from 3 hospitals were analyzed. RESULTS A total of 118 patients. The mean age was 30.8 (standard deviation, 14.7) years and the majority were female (n = 95, 80.5%). Sixty-seven patients (56.8%) had clinical symptoms, of which the most common symptom was abdominal pain (49.6%). The mean tumor size was 5.9 (standard deviation, 2.9) cm. Pseudopapillary architecture was the commonest histologic feature, and β-catenin, CD56, vimentin, neuron-specific enolase, CD10, a1-antitrypsin, cytokeratins showed different degrees of positive expression in immunohistochemical staining. Fourteen patients (11.9%) presented aggressive pathologic behavior, which was correlated to the incomplete tumor capsule. At a median follow-up of 59.2 months, the recurrence rate was 1.8% and the overall 5-year survival rate was 97.7%. CONCLUSIONS Solid pseudopapillary neoplasm of the pancreas is a potentially low-grade malignant tumor that most frequently found in young females. Its clinical manifestations are nonspecific and the diagnosis mostly depends on pathological examination. Surgical resection is the first choice of treatment for SPN with a good prognosis.
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Affiliation(s)
- Gen Sun
- From the Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Kang Fang
- From the Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xiaowei Fu
- Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Long Peng
- Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jiaming Shu
- Department of Oncology, Jiangxi Provincial People's Hospital, Nanchang, China
| | - Yi Tu
- Department of Pathology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yong Li
- From the Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Weidong Xiao
- From the Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
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Meng L, Zhan Y, Wei M, Yang R, Wang J, Weng S, Chen L, Zheng S, Dong K, Dong R. Single-cell RNA sequencing of solid pseudopapillary neoplasms of the pancreas in children. Cancer Sci 2023; 114:1986-2000. [PMID: 36721980 PMCID: PMC10154873 DOI: 10.1111/cas.15744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 01/05/2023] [Accepted: 01/23/2023] [Indexed: 02/02/2023] Open
Abstract
Solid pseudopapillary neoplasm (SPN) of the pancreas is a rare pancreatic tumor in children. Its origin remains elusive, along with its pathogenesis. Heterogeneity within SPN has not been previously described. In addition, low malignant but recurrent cases have occasionally been reported. To comprehensively unravel these profiles, single-cell RNA sequencing was performed using surgical specimens. We identified the cell types and suggested the origin of pancreatic endocrine progenitors. The Wnt/β-catenin pathway may be involved in tumorigenesis, while the epithelial-to-mesenchymal transition may be responsible for SPN recurrence. Furthermore, NOV, DCN were nominated as primary and S100A10, MGP as recurrent SPN marker genes, respectively. Our results provide insight into the pathogenesis of SPN.
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Affiliation(s)
- Lingdu Meng
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, Shanghai, China
| | - Yong Zhan
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, Shanghai, China
| | - Meng Wei
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, Shanghai, China.,Department of Hematology, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ran Yang
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, Shanghai, China
| | - Junfeng Wang
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, Shanghai, China
| | - Shuting Weng
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, Shanghai, China
| | - Lian Chen
- Department of Pathology, Children's Hospital of Fudan University, Shanghai, China
| | - Shan Zheng
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, Shanghai, China
| | - Kuiran Dong
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, Shanghai, China
| | - Rui Dong
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, Shanghai, China
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MEIRA-JÚNIOR JD, YOGOLARE GG, MAGALHÃES DDP, NAMUR GN, CAMPOS FG, SEGATELLI V, NAHAS SC, JUKEMURA J. PANCREATIC SOLID-PSEUDOPAPILLARY NEOPLASM IN PATIENTS WITH FAMILIAL ADENOMATOUS POLYPOSIS. ARQUIVOS BRASILEIROS DE CIRURGIA DIGESTIVA : ABCD = BRAZILIAN ARCHIVES OF DIGESTIVE SURGERY 2023; 35:e1718. [PMID: 36629695 PMCID: PMC9831633 DOI: 10.1590/0102-672020220002e1718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 10/15/2022] [Indexed: 01/11/2023]
Abstract
BACKGROUND Solid pseudopapillary neoplasm of the pancreas is an uncommon pancreatic tumor, which is more frequent in young adult women. Familial adenomatous polyposis is a genetic condition associated with colorectal cancer that also increases the risk of developing other tumors as well. AIM The aim of this study was to discuss the association of familial adenomatous polyposis with solid pseudopapillary neoplasm of the pancreas, which is very rare. METHODS We report two cases of patients with familial adenomatous polyposis who developed solid pseudopapillary neoplasm of the pancreas of the pancreas and were submitted to laparoscopic pancreatic resections with splenic preservation (one male and one female). RESULTS ß-catenin and Wnt signaling pathways have been found to play an important role in the tumorigenesis of solid pseudopapillary neoplasm of the pancreas, and their constitutive activation due to adenomatous polyposis coli gene inactivation in familial adenomatous polyposis may explain the relationship between familial adenomatous polyposis and solid pseudopapillary neoplasm of the pancreas. CONCLUSION Colonic resection must be prioritized, and a minimally invasive approach is preferred to minimize the risk of developing desmoid tumor. Pancreatic resection usually does not require extensive lymphadenectomy for solid pseudopapillary neoplasm of the pancreas, and splenic preservation is feasible.
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Affiliation(s)
- José Donizeti MEIRA-JÚNIOR
- Universidade de São Paulo, Faculty of Medicine, University Hospital, Gastroenterology Department, Digestive Surgery Division – São Paulo (SP), Brazil
| | - Gustavo Gonçalves YOGOLARE
- Universidade de São Paulo, Faculty of Medicine, University Hospital, Gastroenterology Department, Digestive Surgery Division – São Paulo (SP), Brazil
| | - Daniel de Paiva MAGALHÃES
- Universidade de São Paulo, Faculty of Medicine, University Hospital, Gastroenterology Department, Digestive Surgery Division – São Paulo (SP), Brazil
| | - Guilherme Naccache NAMUR
- Universidade de São Paulo, Faculty of Medicine, University Hospital, Gastroenterology Department, Digestive Surgery Division – São Paulo (SP), Brazil
| | - Fabio Guilherme CAMPOS
- Universidade de São Paulo, Faculty of Medicine, University Hospital, Gastroenterology Department, Digestive Surgery Division – São Paulo (SP), Brazil
| | - Vanderlei SEGATELLI
- Universidade de São Paulo, Faculty of Medicine, University Hospital, Pathology Department – São Paulo (SP), Brasil
| | - Sergio Carlos NAHAS
- Universidade de São Paulo, Faculty of Medicine, University Hospital, Gastroenterology Department, Digestive Surgery Division – São Paulo (SP), Brazil
| | - Jose JUKEMURA
- Universidade de São Paulo, Faculty of Medicine, University Hospital, Gastroenterology Department, Digestive Surgery Division – São Paulo (SP), Brazil
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40
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El Halabi J, LaGuardia L, Walsh RM, Kwon CHD, Menon KVN, Liska D, Burke CA. Hepatocellular carcinoma and solid pseudopapillary neoplasm of the pancreas complicating familial adenomatous polyposis: two cases and review of the literature. Fam Cancer 2023; 22:77-82. [PMID: 35896845 DOI: 10.1007/s10689-022-00305-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 06/28/2022] [Indexed: 01/12/2023]
Abstract
Familial adenomatous polyposis (FAP) is characterized by colorectal polyposis and extracolonic tumors. Adenocarcinoma of the pancreas and hepatocellular carcinoma are rare in FAP. In this case series, we describe a mother and daughter with FAP who developed a hepatocellular carcinoma and solid pseudopapillary neoplasm of the pancreas, respectively.
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Affiliation(s)
- Jessica El Halabi
- Department of Internal Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Lisa LaGuardia
- Department of Colorectal Surgery, Cleveland Clinic, Cleveland, OH, USA.,Sanford R. Weiss MD Center for Hereditary Colorectal Neoplasia, Cleveland Clinic, Cleveland, OH, USA
| | - R Matthew Walsh
- Department of General Surgery, Cleveland Clinic, Cleveland, OH, USA.,Sanford R. Weiss MD Center for Hereditary Colorectal Neoplasia, Cleveland Clinic, Cleveland, OH, USA
| | | | - K V Narayanan Menon
- Department of Gastroenterology, Hepatology, and Nutrition, Cleveland Clinic, Mail Code A30, 9500 Euclid Avenue, Cleveland, OH, 44195, USA
| | - David Liska
- Department of Colorectal Surgery, Cleveland Clinic, Cleveland, OH, USA.,Sanford R. Weiss MD Center for Hereditary Colorectal Neoplasia, Cleveland Clinic, Cleveland, OH, USA
| | - Carol A Burke
- Department of Gastroenterology, Hepatology, and Nutrition, Cleveland Clinic, Mail Code A30, 9500 Euclid Avenue, Cleveland, OH, 44195, USA. .,Sanford R. Weiss MD Center for Hereditary Colorectal Neoplasia, Cleveland Clinic, Cleveland, OH, USA.
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41
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Pankreasveränderungen – Differenzialdiagnose mit Kontrastmittel-Ultraschall. ROFO-FORTSCHR RONTG 2023. [DOI: 10.1055/a-1855-6393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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42
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Singh S, Zhao Q, Sachs TE, Hartshorn K. Reporting a Case of Solid Pseudopapillary Neoplasm of the Pancreas in a 44-Year-Old Woman with Parallel Analysis of Literature. Case Rep Oncol Med 2023; 2023:1768926. [PMID: 37153719 PMCID: PMC10162882 DOI: 10.1155/2023/1768926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 03/31/2023] [Accepted: 04/10/2023] [Indexed: 05/10/2023] Open
Abstract
We present a distinctive case of solid pseudopapillary neoplasm as seen in a 44-year-old woman who presented with an abdominal mass but unremarkable labs with no elevation in any of the tumor markers. Her symptomatology ranged from typical symptoms suggestive of malignancy such as weight loss, lethargy, and anorexia to complaints like abdominal pain and jaundice. Prior to presenting at our center, she was given no hope or much in terms of treatment options. She was found to have a substantial mass over the body and tail of pancreas with characteristic and typical gross as well as histological features. Subsequently, she underwent a successful surgery and has found herself in remission since.
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Affiliation(s)
- Sargun Singh
- Division of Gastroenterology and Liver Disease, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Qing Zhao
- Department of Pathology, Boston University School of Medicine, Boston, MA, USA
| | - Teviah E. Sachs
- Section of Surgical Oncology, Department of Surgery, Boston University School of Medicine, Boston, MA, USA
| | - Kevan Hartshorn
- Section of Hematology Oncology, Department of Medicine, Boston University School of Medicine, Boston, MA, USA
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43
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Bansal LK, Kapur N, Gupta AK, Nagpal A, Chaudhary P. Solid Pseudopapillary Neoplasm - Case Series and Review of Literature. Indian J Surg Oncol 2022; 13:765-775. [PMID: 36687233 PMCID: PMC9845477 DOI: 10.1007/s13193-022-01560-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Accepted: 05/24/2022] [Indexed: 01/25/2023] Open
Abstract
Solid-pseudopapillary neoplasm (SPN) is a variety of solid and cystic tumors of the pancreas. It was first described by Frantz in 1959. It is an unusual form of pancreatic carcinoma, with unknown etiopathogenesis, which accounts for about 0.17 to 2.7% of all pancreatic tumors. Here, we are describing 5 cases of pancreatic solid pseudopapillary neoplasm, out of 180 pancreatic tumors, operated in our institution in the 5-year period (2015-2020). Also, we have reviewed all available case series (from 2006 to 2020) in the literature, of pancreatic pseudopapillary neoplasm, for demographic information, etiopathogenesis, diagnosis, and extent of operation to establish the optimal management of this condition. Retrospective analysis of pancreatic tumors was carried out from February 2015 to January 2020. A total of 180 patients underwent pancreatic resection in this period for pancreatic tumor, out of which, the solid pseudopapillary neoplasm was confirmed in 5 cases (2.76%). Among these 5 cases, 4 cases (80%) were female and one (20%) male, with age group range from 14 to 45 years (mean age - 28 years). Abdominal pain was the most frequent presenting symptom (60%). Mean tumor diameter was 6.9 cm (range, 2-18 cm). Two patients were diagnosed preoperatively by CECT and MRI findings, and three patients were diagnosed preoperatively by percutaneous/USG-guided and CT-guided FNA cytology. Two patients underwent pancreatoduodenectomy; one patient underwent enucleation; and two patients underwent spleen preserving distal pancreatectomy. Four patients are alive and on regular follow-up, while one patient died on the 5th post-operative day due to post-operative sepsis.
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Affiliation(s)
- Lalit Kumar Bansal
- Department of Surgery, ABVIMS and Dr. Ram Manohar Lohia Hospital and Post Graduate Institute of Medical Education and Research, New Delhi, India
| | - Neeti Kapur
- Department of Surgery, ABVIMS and Dr. Ram Manohar Lohia Hospital and Post Graduate Institute of Medical Education and Research, New Delhi, India
| | - Arun Kumar Gupta
- Department of Surgery, ABVIMS and Dr. Ram Manohar Lohia Hospital and Post Graduate Institute of Medical Education and Research, New Delhi, India
| | - Ashutosh Nagpal
- Department of Surgery, ABVIMS and Dr. Ram Manohar Lohia Hospital and Post Graduate Institute of Medical Education and Research, New Delhi, India
| | - Poras Chaudhary
- Department of Surgery, ABVIMS and Dr. Ram Manohar Lohia Hospital and Post Graduate Institute of Medical Education and Research, New Delhi, India
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44
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Lin YJ, Burkhart R, Lu TP, Wolfgang C, Wright M, Zheng L, Wu HY, Chen CH, Lee SY, Wu CH, He J, Tien YW. Solid Pseudopapillary Neoplasms of the Pancreas Across Races Demonstrate Disparities with Comparably Good Prognosis. World J Surg 2022; 46:3072-3080. [PMID: 36066663 DOI: 10.1007/s00268-022-06717-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/28/2022] [Indexed: 01/14/2023]
Abstract
BACKGROUND Solid pseudopapillary neoplasms (SPNs) of the pancreas are rare with low-grade malignancy and unclarified clinicopathological features. This study aimed to examine their characteristics and re-evaluate current treatments. METHODS Databases from three sources were screened for patients with SPNs. We compared the perioperative variables, clinical data, overall survival (OS), and prognostic factors for recurrence among the three corresponding cohorts. RESULTS We identified 286 patients diagnosed with SPNs between 1988 and 2020. Patients were mostly women (81%; median age: 38 years), and peak incidence was observed in women of 20-29 years of age. SPNs had a peak incidence in Asian men at 50-59 years of age (p = 0.002) and a delayed peak incidence in Asian women at 30-39 years of age (p < 0.001). Treatment strategies differed significantly across the institutions and included variations in the number of harvested lymph nodes and rates of vascular resection. Lymph node positivity was the only predictor of postoperative recurrence (odds ratio, 2.2; 95% confidence interval, 1.38-2.99; p = 0.007). Higher rates of lymphovascular invasion (p = 0.02), perineural invasion (p < 0.001), and R1 margin involvement (p < 0.001), as seen in one institution, did not result in poorer long-term survival in terms of the overall (p = 0.43), SPN-specific (p = 0.69), and recurrence-free survivals (p = 0.067). CONCLUSIONS In contrast to previous findings that SPNs are prevalent in young women, a racial predilection for middle-aged Asian men and a delayed female peak incidence were noted. Parenchyma-preserving pancreatectomy may be an acceptable treatment. Non-radical surgery may be appropriate in patients with multiple comorbidities.
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Affiliation(s)
- Young-Jen Lin
- Department of Surgery, National Taiwan University Hospital and National Taiwan University College of Medicine, No. 7 Chung-Shan South Rd., Taipei, 10002, Taiwan
| | - Richard Burkhart
- Division of Hepatobiliary and Pancreatic Surgery, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Halsted 614, Baltimore, MD, 21287, USA
| | - Tzu-Pin Lu
- Department of Public Health, Institute of Epidemiology and Preventive Medicine, National Taiwan University, Taipei, Taiwan
| | - Christopher Wolfgang
- Department of Surgery, New York University Langone Health System, New York University Grossman School of Medicine, New York, NY, USA
| | - Michael Wright
- Division of Hepatobiliary and Pancreatic Surgery, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Halsted 614, Baltimore, MD, 21287, USA
| | - Lei Zheng
- Departments of Surgery and Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.,The Pancreatic Cancer Precision Medicine Center of Excellence Program, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Han-Yu Wu
- Department of Surgery, National Taiwan University Hospital and National Taiwan University College of Medicine, No. 7 Chung-Shan South Rd., Taipei, 10002, Taiwan
| | - Ching-Hsuan Chen
- Department of Public Health, Institute of Epidemiology and Preventive Medicine, National Taiwan University, Taipei, Taiwan
| | - Shin-Yi Lee
- Department of Surgery, National Taiwan University Hospital and National Taiwan University College of Medicine, No. 7 Chung-Shan South Rd., Taipei, 10002, Taiwan
| | - Chien-Hui Wu
- Department of Surgery, National Taiwan University Hospital and National Taiwan University College of Medicine, No. 7 Chung-Shan South Rd., Taipei, 10002, Taiwan. .,Department of Public Health, Institute of Epidemiology and Preventive Medicine, National Taiwan University, Taipei, Taiwan.
| | - Jin He
- Division of Hepatobiliary and Pancreatic Surgery, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Halsted 614, Baltimore, MD, 21287, USA.
| | - Yu-Wen Tien
- Department of Surgery, National Taiwan University Hospital and National Taiwan University College of Medicine, No. 7 Chung-Shan South Rd., Taipei, 10002, Taiwan
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45
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Solid pseudopapillary neoplasm of the pancreas after living-donor liver transplantation. JOURNAL OF PEDIATRIC SURGERY CASE REPORTS 2022. [DOI: 10.1016/j.epsc.2022.102530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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46
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Muacevic A, Adler JR, Pacheco J, Santos-Sousa H, Meireles S, Bessa Melo R, Aral M, Barbosa E. Late Recurrence of Pancreatic Solid Pseudopapillary Neoplasm With Peritoneal Carcinomatosis Treated With Cytoreductive Surgery (CRS) and Hyperthermic Intraperitoneal Chemotherapy (HIPEC): A Case Report. Cureus 2022; 14:e31189. [PMID: 36505136 PMCID: PMC9728010 DOI: 10.7759/cureus.31189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/07/2022] [Indexed: 11/09/2022] Open
Abstract
Pancreatic solid pseudopapillary neoplasm (SPN) is a rare malignant tumour predominantly affecting young women. The occurrence of peritoneal carcinomatosis (PC) in this setting is an even rarer condition, usually related to perioperative tumour rupture. We present a case of a 43-year-old woman who previously underwent distal splenopancreatectomy after the diagnosis of a pancreatic SPN. Thirteen years later, the patient underwent a radical hysterectomy due to a uterine myoma. Intraoperatively, a peritoneal mass was additionally found and resected. Histological examination revealed an implant with morphology compatible with pancreatic SPN. The patient was then referred to our institution. Staging MRI and CT revealed multiple nodular lesions adjacent to the left colon, suggestive of peritoneal implants. The patient was then submitted to cytoreductive surgery (CRS) combined with hyperthermic intraperitoneal chemotherapy (HIPEC) with oxaliplatin and irinotecan. Histological examination confirmed peritoneal involvement by a pancreatic SPN. The postoperative course was unremarkable. Two years after surgery, the patient remains asymptomatic with no evidence of relapse. Despite SPN being cancer with a relatively indolent evolution, one needs to be aware of a possible recurrence several years after the primary resection, mainly in patients with evidence of intraoperative tumour rupture.
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47
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Clinical Course, Genetic, and Immunohistochemical Characterization of Solid Pseudopapillary Tumor of the Pancreas (Frantz Tumors) in a Brazilian Cohort. Genes (Basel) 2022; 13:genes13101809. [PMID: 36292694 PMCID: PMC9601385 DOI: 10.3390/genes13101809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 10/02/2022] [Accepted: 10/03/2022] [Indexed: 11/17/2022] Open
Abstract
Frantz tumors or solid pseudopapillary pancreatic neoplasm (SPN) are rare exocrine neoplasms that carry a favorable prognosis; they represent up to 3% of all tumors located in the region of the pancreas and have specific age and gender predispositions. In recent years, the rising curve of diagnosis is entitled to the evolution and access of diagnostic imaging. In this paper, we have retrospectively reviewed and described the clinical course of 40 patients with SPN from three institutions in Brazil, who had their diagnosis between 2005 and 2020, and analyzed the clinicopathological, genetic, and surgical aspects of these individuals. In accordance with the literature, most patients were women, 60% with unspecified symptoms at diagnosis, with tumors mainly located in the body and tail of the pancreas, of whom 70% underwent a distal pancreatectomy with sparing splenectomy as a standard procedure, and none of the cases have experienced recurrence to date. Surgery still remains the mainstay of treatment given the low metastatic potential, but more conservative approaches as observed in this cohort are evolving to become the standard of care. Herein, we present an in-depth analysis of cases focusing on the latest literature and report some of the smallest tumor cases in the literature. To our knowledge, this is the first report evaluating germline genetic testing and presenting a case of detected Li-Fraumeni syndrome.
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48
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Shyr BS, Wang SE, Chen SC, Shyr YM, Shyr BU. Pancreatic head sparing surgery for solid pseudopapillary tumor in patients with agenesis of the dorsal pancreas. J Chin Med Assoc 2022; 85:981-986. [PMID: 35801950 DOI: 10.1097/jcma.0000000000000771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND This study aimed to clarify the feasibility and justification of pancreatic head sparing (PHS) enucleation for patients with agenesis of the dorsal pancreas (ADP) associated with a solid pseudopapillary tumor (SPT). METHODS Data of the SPT patients with and without ADP, including clinical presentations, surgical options, and surgical and survival outcomes, were recruited for comparison. RESULTS A total of 31 patients with SPTs were included, three of whom displayed ADP and underwent PHS enucleation. Surgical complications were comparable between the groups. Overall, the 5- and 10-year disease-free survival rates were 100% and 90%, respectively. The 20- and 25-year overall survival rates were 100% and 66.7%, respectively. Only one patient (3.2%) developed tumor recurrence 7.3 years after pancreatectomy for an SPT with lymph node involvement, and the patient survived 24.5 years after the initial operation. No tumor recurrence occurred in any patient with ADP after PHS enucleation. CONCLUSION PHS enucleation seems to be feasible and justifiable for SPT patients with ADP in terms of surgical and survival outcomes, and this approach could be recommended to avoid pancreatic insufficiency.
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Affiliation(s)
- Bor-Shiuan Shyr
- Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Surgery, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Shin-E Wang
- Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Surgery, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Shih-Chin Chen
- Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Surgery, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Yi-Ming Shyr
- Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Surgery, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Bor-Uei Shyr
- Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Surgery, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
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49
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Muacevic A, Adler JR. Solid Pseudopapillary Epithelial Neoplasm of the Pancreas in the Paediatric Population: A Report of Two Cases. Cureus 2022; 14:e29805. [PMID: 36337824 PMCID: PMC9620738 DOI: 10.7759/cureus.29805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/30/2022] [Indexed: 11/05/2022] Open
Abstract
A rare pathology, the solid pseudopapillary epithelial neoplasm (SPEN) of the pancreas accounts for approximately 1% of pancreatic neoplasms. Initially called ‘Frantz’s tumour’, it has now been renamed to SPEN by the World Health Organization (WHO). This tumour has a predilection for females and a good prognosis with surgical excision being the treatment of choice. Palpable abdominal masses in children are of significant clinical importance. Identifying cystic lesions in the pancreas from CT or MRI scans always warrant further investigations. Primary pancreatic neoplasms account for 0.1% of pancreatic tumours in the paediatric population; an extremely rare circumstance constituting a diagnostic and therapeutic challenge to surgeons. This article comprises two paediatric cases of SPEN in 14- and 11-year-old females, respectively, and a literature review on current management.
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50
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Yang J, Tan CL, Long D, Liang Y, Zhou L, Liu XB, Chen YH. Analysis of invasiveness and tumor-associated macrophages infiltration in solid pseudopapillary tumors of pancreas. World J Gastroenterol 2022; 28:5047-5057. [PMID: 36160642 PMCID: PMC9494934 DOI: 10.3748/wjg.v28.i34.5047] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 08/05/2022] [Accepted: 08/25/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Solid pseudopapillary tumor (SPT) is a rare pancreatic tumor. Considering its malignant behaviors, SPT has been classified as a low-grade malignant tumor. Indeed, only 9.2% of all SPT patients are initially diagnosed as malignant with invasion or metastasis. Thus, one of the challenges in managing SPT patients is predicting malignant behavior.
AIM To investigate the malignant behavior and tumor-associated macrophage (TAM) infiltration between different histopathologic features of SPT patients.
METHODS Twenty-five formalin-fixed paraffin-embedded tissue samples from 22 patients pathologically diagnosed with an SPT between 2009 and 2019 at West China Hospital were included in this retrospective study. Integrity of the capsule and growth pattern of the tumor cells was assessed microscopically in hematoxylin-eosin (HE)-stained sections. Based on the histopathological features, the SPT patients were divided into two groups: capsule or invasion. Clinical features, malignant behavior, and TAM infiltration were compared between the two groups.
RESULTS Among the 22 SPT patients, 11 were identified for each group, having either a capsule or invasion histopathologic feature. Malignant behavior was more frequent in the invasion group, including 2 patients who had peripheral organ invasion, 3 with liver metastasis, and 1 with both lymph node and spleen metastases (P= 0.045). Ki-67 index of more than 3% was also more frequent in the invasion group (P = 0.045). Immunohistochemical analysis showed that the invasion group had a significant increase of CD68-positive TAMs in intratumor and peritumor sites in comparison with the capsule group (all P < 0.0001). Similarly, CD163-positive M2-like macrophages were also markedly increased in the intratumor and peritumor sites in the invasion group (all P < 0.0001). At the liver metastasis site, both intratumor and peritumor tissues showed relatively high-level CD68-positive TAMs and CD163-positive M2-like macrophages infiltration. However, the differences between the intratumor, peritumor and normal hepatic tissues did not reach statistical significance (all P > 0.05).
CONCLUSION SPT patients with invasion evident under microscope were more likely to exhibit malignant behavior and TAM infiltration, especially M2-like macrophages. This finding can help in future investigations of the underlying mechanism of TAM-mediated SPT malignant behavior.
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Affiliation(s)
- Jie Yang
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Chun-Lu Tan
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Dan Long
- Key Laboratory of Transplant Engineering and Immunology of the Ministry of Health, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Yan Liang
- Core Facilities, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Li Zhou
- Core Facilities, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Xu-Bao Liu
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Yong-Hua Chen
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
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