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Flammia F, Innocenti T, Galluzzo A, Danti G, Chiti G, Grazzini G, Bettarini S, Tortoli P, Busoni S, Dragoni G, Gottin M, Galli A, Miele V. Branch duct-intraductal papillary mucinous neoplasms (BD-IPMNs): an MRI-based radiomic model to determine the malignant degeneration potential. LA RADIOLOGIA MEDICA 2023; 128:383-392. [PMID: 36826452 DOI: 10.1007/s11547-023-01609-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 02/05/2023] [Indexed: 02/25/2023]
Abstract
BACKGROUND Branch duct-intraductal papillary mucinous neoplasms (BD-IPMNs) are the most common pancreatic cystic tumors and have a low risk of malignant transformation. Features able to early identify high-risk BD-IPMNs are lacking, and guidelines currently rely on the occurrence of worrisome features (WF) and high-risk stigmata (HRS). AIM In our study, we aimed to use a magnetic resonance imaging (MRI) radiomic model to identify features linked to a higher risk of malignant degeneration, and whether these appear before the occurrence of WF and HRS. METHODS We retrospectively evaluated adult patients with a known BD-IPMN who had had at least two contrast-enhanced MRI studies at our center and a 24-month minimum follow-up time. MRI acquisition protocol for the two examinations included pre- and post-contrast phases and diffusion-weighted imaging (DWI)/apparent diffusion coefficient (ADC) map. Patients were divided into two groups according to the development of WF or HRS at the end of the follow-up (Group 0 = no WF or HRS; Group 1 = WF or HRS). We segmented the MRI images and quantitative features were extracted and compared between the two groups. Features that showed significant differences (SF) were then included in a LASSO regression method to build a radiomic-based predictive model. RESULTS We included 50 patients: 31 in Group 0 and 19 in Group 1. No patients in this cohort developed HRS. At baseline, 47, 67, 38, and 68 SF were identified for pre-contrast T1-weighted (T1-W) sequence, post-contrast T1-W sequence, T2-weighted (T2- W) sequence, and ADC map, respectively. At the end of follow-up, we found 69, 78, 53, and 91 SF, respectively. The radiomic-based predictive model identified 16 SF: more particularly, 5 SF for pre-contrast T1-W sequence, 6 for post-contrast T1-W sequence, 3 for T2-W sequence, and 2 for ADC. CONCLUSION We identified radiomic features that correlate significantly with WF in patients with BD-IPMNs undergoing contrast-enhanced MRI. Our MRI-based radiomic model can predict the occurrence of WF.
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Affiliation(s)
- Federica Flammia
- Department of Radiology, Careggi University Hospital, Largo Brambilla 3, 50134, Florence, Italy
| | - Tommaso Innocenti
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale G.B. Morgagni 50, 50134, Florence, Italy.,Clinical Gastroenterology Unit, Careggi University Hospital, Largo Brambilla 3, 50134, Florence, Italy
| | - Antonio Galluzzo
- Department of Radiology, Careggi University Hospital, Largo Brambilla 3, 50134, Florence, Italy
| | - Ginevra Danti
- Department of Radiology, Careggi University Hospital, Largo Brambilla 3, 50134, Florence, Italy.
| | - Giuditta Chiti
- Department of Radiology, Careggi University Hospital, Largo Brambilla 3, 50134, Florence, Italy
| | - Giulia Grazzini
- Department of Radiology, Careggi University Hospital, Largo Brambilla 3, 50134, Florence, Italy
| | - Silvia Bettarini
- Department of Health Physics, Careggi University Hospital, Largo Brambilla 3, 50134, Florence, Italy
| | - Paolo Tortoli
- Department of Health Physics, Careggi University Hospital, Largo Brambilla 3, 50134, Florence, Italy
| | - Simone Busoni
- Department of Health Physics, Careggi University Hospital, Largo Brambilla 3, 50134, Florence, Italy
| | - Gabriele Dragoni
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale G.B. Morgagni 50, 50134, Florence, Italy.,Clinical Gastroenterology Unit, Careggi University Hospital, Largo Brambilla 3, 50134, Florence, Italy
| | - Matteo Gottin
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale G.B. Morgagni 50, 50134, Florence, Italy.,Clinical Gastroenterology Unit, Careggi University Hospital, Largo Brambilla 3, 50134, Florence, Italy
| | - Andrea Galli
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale G.B. Morgagni 50, 50134, Florence, Italy.,Clinical Gastroenterology Unit, Careggi University Hospital, Largo Brambilla 3, 50134, Florence, Italy
| | - Vittorio Miele
- Department of Radiology, Careggi University Hospital, Largo Brambilla 3, 50134, Florence, Italy
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Lang M, Spektor AM, Hielscher T, Hoppner J, Glatting FM, Bicu F, Hackert T, Heger U, Pausch T, Gutjahr E, Rathke H, Giesel FL, Kratochwil C, Tjaden C, Haberkorn U, Röhrich M. Static and Dynamic 68Ga-FAPI PET/CT for the Detection of Malignant Transformation of Intraductal Papillary Mucinous Neoplasia of the Pancreas. J Nucl Med 2023; 64:244-251. [PMID: 35906094 PMCID: PMC9902850 DOI: 10.2967/jnumed.122.264361] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 07/16/2022] [Accepted: 07/16/2022] [Indexed: 02/04/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) may arise from intraductal papillary mucinous neoplasms (IPMN) with malignant transformation, but a significant portion of IPMN remains to show benign behavior. Therefore, it is important to differentiate between benign IPMN and IPMN lesions undergoing malignant transformation. However, nonoperative differentiation by ultrasound, CT, MRI, and carbohydrate antigen 19-9 (CA19-9) is still unsatisfactory. Here, we assessed the clinical feasibility of additional assessment of malignancy by PET using 68Ga-labeled fibroblast activation protein inhibitors (68Ga-FAPI PET) in 25 patients with MRI- or CT-proven cystic pancreatic lesions. Methods: Twenty-five patients with cystic pancreatic lesions who were followed up in the European Pancreas Center of Heidelberg University hospital and who were led to surgical resection or fine-needle aspiration due to suspicious clinical, laboratory chemistry, or radiologic findings were examined by static (all patients) and dynamic (20 patients) 68Ga-FAPI PET. Cystic pancreatic lesions were delineated and SUVmax and SUVmean were determined. Time-activity curves and dynamic parameters (time to peak, K 1, k 2, K3, k 4) were extracted from dynamic PET data. Receiver-operating curves of static and dynamic PET parameters were calculated. Results: Eleven of the patients had menacing IPMN (high-grade IPMN with [6 cases] or without [5 cases] progression into PDAC) and 11 low-grade IPMN; 3 patients had other benign entities. Menacing IMPN showed significantly elevated 68Ga-FAPI uptake compared with low-grade IPMN and other benign cystic lesions. In dynamic imaging, menacing IPMN showed increasing time-activity curves followed by slow decrease afterward; time-activity curves of low-grade IPMN showed an immediate peak followed by rapid decrease for about 10 min and slower decrease for the rest of the time. Receiver-operating curves showed high sensitivity and specificity (area under the curve greater than 80%) of static and dynamic PET parameters for the differentiation of IPMN subtypes. Conclusion: 68Ga-FAPI PET is a helpful new tool for the differentiation of menacing and low-grade IPMN and shows the potential to avoid unnecessary surgery for nonmalignant pancreatic IPMN.
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Affiliation(s)
- Matthias Lang
- Department of General, Visceral, and Transplantation Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - Anna-Maria Spektor
- Department of Nuclear Medicine, University Hospital Heidelberg, Heidelberg, Germany
| | - Thomas Hielscher
- Department of Biostatistics, German Cancer Research Center, Heidelberg, Germany
| | - Jorge Hoppner
- Department of Nuclear Medicine, University Hospital Heidelberg, Heidelberg, Germany
| | - Frederik M. Glatting
- Department of Nuclear Medicine, University Hospital Heidelberg, Heidelberg, Germany;,Clinical Cooperation Unit Molecular and Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany;,Department of Radiation Oncology, University Hospital Heidelberg, Heidelberg, Germany
| | - Felix Bicu
- Department of Nuclear Medicine, University Hospital Heidelberg, Heidelberg, Germany
| | - Thilo Hackert
- Department of General, Visceral, and Transplantation Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - Ulrike Heger
- Department of General, Visceral, and Transplantation Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - Thomas Pausch
- Department of General, Visceral, and Transplantation Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - Ewgenija Gutjahr
- Department of Pathology, University Hospital Heidelberg, Heidelberg, Germany
| | - Hendrik Rathke
- Department of Nuclear Medicine, University Hospital Heidelberg, Heidelberg, Germany;,Department of Nuclear Medicine, The Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Frederik L. Giesel
- Department of Nuclear Medicine, University Hospital Heidelberg, Heidelberg, Germany;,Department of Nuclear Medicine, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Clemens Kratochwil
- Department of Nuclear Medicine, University Hospital Heidelberg, Heidelberg, Germany
| | - Christine Tjaden
- Department of General, Visceral, and Transplantation Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - Uwe Haberkorn
- Department of Nuclear Medicine, University Hospital Heidelberg, Heidelberg, Germany;,Translational Lung Research Center Heidelberg (TLRC), Member of the German Center for Lung Research DZL, Heidelberg, Germany; and,Clinical Cooperation Unit Nuclear Medicine, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Manuel Röhrich
- Department of Nuclear Medicine, University Hospital Heidelberg, Heidelberg, Germany;
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Pu N, Chen Q, Zhang J, Yin H, Wang D, Ji Y, Rao S, Kuang T, Xu X, Wu W, Lou W. Circulating cytokines allow for identification of malignant intraductal papillary mucinous neoplasms of the pancreas. Cancer Med 2023; 12:3919-3930. [PMID: 35871313 PMCID: PMC9972143 DOI: 10.1002/cam4.5051] [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: 04/04/2022] [Revised: 07/06/2022] [Accepted: 07/11/2022] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Intraductal papillary mucinous neoplasms (IPMNs) are the precursor lesions of pancreatic cancers, requiring active surgical intervention during cancer development. However, the current criteria for predicting malignant IPMNs remain challenging and limited. Hence, this study aimed to assess the discriminatory performance of circulating cytokines, including TNF-α, IL-2R, IL-6, and IL-8, then build a novel predictive model to improve the diagnostic accuracy. METHOD A total of 131 retrospective (from March 2016 to December 2019) and 53 prospective (from March 2020 to January 2021) patients who were histologically confirmed as IPMNs were consecutively collected and analyzed. RESULT The circulating levels of TNF-α, IL-2R, IL-6, and IL-8 were significantly elevated in malignant IPMNs, and were verified as independent factors for malignant IPMNs (p < 0.05). Then, a novel score, the circulating cytokine score (CCS), was calculated and demonstrated as an independent predictive indicator with a higher area under the curve (AUC) than each cytokine alone (p < 0.001). Besides the CCS, two high-risk stigmata features, the presence of solid component (PSC), and main pancreatic duct (MPD) dilation ≥10 mm were also demonstrated as independent indicators for predicting malignant IPMNs. Finally, a novel nomogram incorporating the CCS and these two high-risk stigmata features presented a remarkable diagnostic performance, both in the training and validation cohorts with AUCs of 0.928 and 0.873, respectively. CONCLUSION The CCS can be considered a novel independent predictive indicator for malignant IPMNs. Additionally, the formulated nomogram model integrating the CCS, PSC, and MPD ≥10 mm can be a valuable and promising tool for predicting the malignant transformation of IPMNs during long-term follow-ups to assist in timely and accurate surgical decisions.
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Affiliation(s)
- Ning Pu
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Qiangda Chen
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jicheng Zhang
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Hanlin Yin
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Dansong Wang
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yuan Ji
- Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China.,Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Shengxiang Rao
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Tiantao Kuang
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xuefeng Xu
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Wenchuan Wu
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Wenhui Lou
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
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4
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He X, Fan R, Sun J, Ren Y, Zhao X, Rui W, Yuan Y, Zou D. A model for predicting degree of malignancy in patients with intraductal papillary mucinous neoplasm. Front Oncol 2023; 13:1087852. [PMID: 36761937 PMCID: PMC9902908 DOI: 10.3389/fonc.2023.1087852] [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: 11/02/2022] [Accepted: 01/05/2023] [Indexed: 01/26/2023] Open
Abstract
Background/Objectives There is no predictive model available to address early stage malignant intraductal papillary mucinous neoplasm (IPMN) including high grade dysplasia (HGD) and pT1a (invasive component≤0.5 cm). The aim of this study was to establish an objective and sufficient model to predict the degree of malignancy in patients with IPMN, which can be easily applied in daily practice and adopted for any type of lesion. Methods A retrospective cohort study of 309 patients who underwent surgical resection for IPMN was performed. Members of the cohort were randomly allocated to the training or testing set. A detection tree model and random forest model were used for a 3-class classification to distinguish low grade dysplasia (LGD), HGD/pT1a IPMN, and invasive intraductal papillary mucinous cancer (I-IPMC) beyond pT1a. Results Of the 309 patients, 54 (17.4%) had early stage malignancy (19 HGD, 35 pT1a), 49 (15.9%) had I-IPMC beyond pT1a, and 206 (66.7%) had LGD IPMN. We proposed a 3-class classification model using a random forest algorithm, and the model had an accuracy of 99.5% with the training set, and displayed an accuracy of 96.0% with the testing set. We used SHAP for interpretation of the model and showed the top five factors (mural nodule size, main pancreatic duct diameter, CA19-9 levels, lesion edge and common bile duct dilation) were most likely to influence the 3-class classification results in terms of interpretation of the random forest model. Conclusions This predictive model will help assess an individual's risk for different stages of IPMN malignancy and may help identify patients with IPMN who require surgery.
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Affiliation(s)
- Xiangyi He
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Rong Fan
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jing Sun
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yanhao Ren
- School of Mathematical Sciences, Fudan University, Shanghai, China
| | - Xuesong Zhao
- Departments of Radiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Weiwei Rui
- Departments of Pathology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yaozong Yuan
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China,*Correspondence: Yaozong Yuan, ; Duowu Zou,
| | - Duowu Zou
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China,*Correspondence: Yaozong Yuan, ; Duowu Zou,
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Chidambaram S, Kawka M, Gall TM, Cunningham D, Jiao LR. Can we predict the progression of premalignant pancreatic cystic tumors to ductal adenocarcinoma? Future Oncol 2022; 18:2605-2612. [PMID: 35730473 DOI: 10.2217/fon-2021-1545] [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: 11/21/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is the most prevalent malignant pancreatic tumor. Few studies have shown how often PDACs arise from cystic precursor lesions. This special report aims to summarize the evidence on the progression of precancerous lesions to PDAC. A review of the literature found four studies that discussed pancreatic intraepithelial lesions (PanINs), three that discussed mucinous cystic neoplasms (MCN) and five that discussed intraductal papillary neoplasms (IPMNs). PanINs were the most common precursors lesion, with approximately 80% of PDACs originating from this lesion. The lack of evidence characterizing the features of PDAC precursor cystic lesions potentially leads to a subset of patients undergoing surgery unnecessarily. Advancements in molecular techniques could allow the study of cystic lesions at a genetic level, leading to more personalized management.
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Affiliation(s)
- Swathikan Chidambaram
- Department of Surgery & Cancer, Hammersmith Hospital Campus, Imperial College, London, W12 0HS, UK
- Imperial College London, Exhibition Road, South Kensington, London, SW7 2BU, UK
| | - Michal Kawka
- Imperial College London, Exhibition Road, South Kensington, London, SW7 2BU, UK
| | - Tamara Mh Gall
- Department of Surgery & Cancer, Hammersmith Hospital Campus, Imperial College, London, W12 0HS, UK
- Imperial College London, Exhibition Road, South Kensington, London, SW7 2BU, UK
| | - David Cunningham
- Department of Academic Surgery, The Royal Marsden Hospital, 203 Fulham Road, London, SW3 6JJ, UK
| | - Long R Jiao
- Imperial College London, Exhibition Road, South Kensington, London, SW7 2BU, UK
- Department of Academic Surgery, The Royal Marsden Hospital, 203 Fulham Road, London, SW3 6JJ, UK
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6
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Buerlein RCD, Shami VM. Management of pancreatic cysts and guidelines: what the gastroenterologist needs to know. Ther Adv Gastrointest Endosc 2021; 14:26317745211045769. [PMID: 34589706 PMCID: PMC8474323 DOI: 10.1177/26317745211045769] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 08/25/2021] [Indexed: 12/15/2022] Open
Abstract
The prevalence of pancreatic cysts has increased significantly over the last
decade, partly secondary to increased quality and frequency of cross-sectional
imaging. While the majority never progress to cancer, a small number will and
need to be followed. The management of pancreatic cysts can be both confusing
and intimidating due to the multiple guidelines with varying recommendations.
Despite the differences in the specifics of the guidelines, they all agree on
several high-risk features that should get the attention of any clinician when
assessing a pancreatic cyst: presence of a mural nodule or solid component,
dilation of the main pancreatic duct (or presence of main duct intraductal
papillary mucinous neoplasm), pancreatic cyst size ⩾3–4 cm, or positive cytology
on pancreatic cyst fluid aspiration. Other important criteria to consider
include rapid cyst growth (⩾5 mm/year), elevated serum carbohydrate antigen 19-9
levels, new-onset diabetes mellitus, or acute pancreatitis thought to be related
to the cystic lesion.
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Affiliation(s)
| | - Vanessa M Shami
- University of Virginia Digestive Health, 1215 Lee Street, Charlottesville, VA 22903, USA
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Zhao W, Liu S, Cong L, Zhao Y. Imaging Features for Predicting High-Grade Dysplasia or Malignancy in Branch Duct Type Intraductal Papillary Mucinous Neoplasm of the Pancreas: A Systematic Review and Meta-Analysis. Ann Surg Oncol 2021; 29:1297-1312. [PMID: 34554343 DOI: 10.1245/s10434-021-10662-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 08/05/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND The consensus guidelines for branch-duct intraductal papillary mucinous neoplasm (BD-IPMN) of the pancreas are mostly based on imaging features. This study aimed to determine imaging features and their diagnostic accuracy for predicting high-grade dysplasia (HGD)/malignancy in BD-IPMN, including mixed type. METHODS The PubMed, Embase, and Cochrane databases were searched, and data were extracted from relevant studies. As the main diagnostic accuracy index, diagnostic odds ratios (DORs) of imaging features for diagnosing HGD/malignancy in BD-IPMNs were pooled using the random-effects model. A bivariate random-effects approach was used to construct summary receiver operating characteristic curves for sensitivity and specificity estimation. RESULTS The pooled DOR was the highest for the enhanced solid component/mural nodule (MN) (DOR, 12.21; 95 % confidence interval [CI], 6.14-24.27), followed by a main pancreatic duct (MPD) diameter of 10 mm or greater (DOR, 7.93; 95 % CI, 3.02-20.83), solid component (DOR, 4.85; 95 % CI, 2.49-9.42), lymphadenopathy (DOR, 4.84; 95 % CI, 1.11-21.06), MN (DOR, 4.48; 95 % CI, 3.15-6.39), an MPD diameter of 5 mm or greater (DOR, 3.69; 95 % CI, 2.62-5.19), abrupt change in MPD caliber with distal pancreatic atrophy (DOR, 2.65; 95 % CI, 1.66-4.24), thickened/enhancing walls (DOR, 2.38; 95 % CI, 1.57-3.60), and cyst size of 3 cm or larger (DOR, 1.98; 95 % CI, 1.48-2.64). The largest area under the curve (0.89 and 0.95, respectively) and high specificity (0.95 and 0.98, respectively) also were found for enhanced solid component/MN and an MPD diameter of 10 mm or greater, albeit with low sensitivity (0.38 and 0.14, respectively). CONCLUSIONS The aforementioned imaging features could aid in predicting HGD/malignancy of BD-IPMN. Furthermore, enhanced solid component/MN and an MPD diameter of 10 mm or greater were the most important predictors of HGD/malignancy in BD-IPMN and should be considered as indications for surgery.
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Affiliation(s)
- Wenjing Zhao
- Central Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, China
| | - Shanglong Liu
- Department of General Surgery, Affiliated Hospital of Qingdao University, Shandong, China
| | - Lin Cong
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China.
| | - Yupei Zhao
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China.
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8
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Should Contrast-Enhanced Harmonic Endoscopic Ultrasound Be Incorporated into the International Consensus Guidelines to Determine the Appropriate Treatment of Intraductal Papillary Mucinous Neoplasm? J Clin Med 2021; 10:jcm10091818. [PMID: 33921949 PMCID: PMC8122438 DOI: 10.3390/jcm10091818] [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: 03/15/2021] [Revised: 04/04/2021] [Accepted: 04/13/2021] [Indexed: 11/16/2022] Open
Abstract
This study aimed to investigate whether the incorporation of contrast-enhanced harmonic endoscopic ultrasound (CH-EUS) into the international consensus guidelines (ICG) for the management of intraductal papillary mucinous neoplasm (IPMN) could improve its malignancy diagnostic value. In this single-center retrospective study, 109 patients diagnosed with IPMN who underwent preoperative CH-EUS between March 2010 and December 2018 were enrolled. We analyzed each malignancy diagnostic value (sensitivity (Se), specificity (Sp), positive predictive value (PPV), and negative predictive value (NPV)) by replacing fundamental B-mode EUS with CH-EUS as the recommended test for patients with worrisome features (WF) (the CH-EUS incorporation ICG) and comparing the results to those obtained using the 2017 ICG. The malignancy diagnostic values as per the 2017 ICG were 78.9%, 42.3%, 60.0%, and 64.7% for Se, Sp, PPV, and NPV, respectively. The CH-EUS incorporation ICG plan improved the malignancy diagnostic values (Se 78.9%/Sp, 53.8%/PPV, 65.2%/NPV 70.0%). CH-EUS may be useful in determining the appropriate treatment strategies for IPMN.
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9
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Goh BKP, Park RHS, Koh YX, Teo JY, Tan EK, Cheow PC, Thng CH, Low AS, Tan DM, Chow PKH, Chan CY, Chung AYF, Ooi LLPJ. Changing trends in the clinicopathological features, practices and outcomes in the surgical management for cystic lesions of the pancreas and impact of the international guidelines: Single institution experience with 462 cases between 1995-2018. Pancreatology 2020; 20:1786-1790. [PMID: 33008749 DOI: 10.1016/j.pan.2020.09.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 09/08/2020] [Accepted: 09/23/2020] [Indexed: 12/11/2022]
Abstract
INTRODUCTION The impact on clinical practice of the international guidelines including the Sendai Guidelines (SG06) and Fukuoka Guidelines (FG12) on the management of cystic lesions of the pancreas (CLP) has not been well-studied. The primary aim was to examine the changing trends and outcomes in the surgical management of CLP in our institution over time and to determine the impact of these guidelines on our institution practice. METHODS 462 patients with surgically-treated CLP were retrospectively reviewed and classified under the 2 guidelines. The cohort was divided into 3 time periods: 1998-2006, 2007-2012 and 2013 to 2018. RESULTS Comparison across the 3 time periods demonstrated significantly increasing frequency of older patients, asymptomatic CLP, male gender, smaller tumor size, elevated Ca 19-9, use of magnetic resonance imaging (MRI) and use of endoscopic ultrasound (EUS) prior to surgery. There was also significantly increasing frequency of adherence to the international guidelines as evidenced by the increasing proportion of HRSG06 and HRFG12 CLP with a corresponding lower proportion of LRSG06 and LRFG12 being resected. This resulted in a significantly higher proportion of resected CLP whereby the final pathology confirmed that a surgery was actually indicated. CONCLUSIONS Over time, there was increasing adherence to the international guidelines for the selection of patients for surgical resection as evidenced by the significantly increasing proportion of HRSG06 and HRFG06 CLPs undergoing surgery. This was associated with a significantly higher proportion of patients with a definitive indication for surgery. These suggested that over time, there was a continuous improvement in our selection of appropriate CLP for surgical treatment.
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Affiliation(s)
- Brian K P Goh
- Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Singapore; Duke National University of Singapore Medical School, Singapore.
| | - Rachel H S Park
- Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Singapore; Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Ye-Xin Koh
- Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Singapore; Duke National University of Singapore Medical School, Singapore
| | - Jin-Yao Teo
- Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Singapore; Duke National University of Singapore Medical School, Singapore
| | - Ek-Khoon Tan
- Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Singapore; Duke National University of Singapore Medical School, Singapore
| | - Peng-Chung Cheow
- Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Singapore; Duke National University of Singapore Medical School, Singapore
| | - Choon-Hua Thng
- Department of Oncologic Imaging, National Cancer Center Singapore, Singapore
| | - Albert S Low
- Department of Radiology, Singapore General Hospital, Singapore
| | - Damien M Tan
- Department of Gastroenterology and Hepatology, Singapore General Hospital, Singapore
| | - Pierce K H Chow
- Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Singapore; Duke National University of Singapore Medical School, Singapore
| | - Chung-Yip Chan
- Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Singapore; Duke National University of Singapore Medical School, Singapore
| | - Alexander Y F Chung
- Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Singapore; Duke National University of Singapore Medical School, Singapore
| | - London L P J Ooi
- Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Singapore; Duke National University of Singapore Medical School, Singapore
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10
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Abstract
OBJECTIVE To create a simple, objective model to predict the presence of malignancy in patients with intraductal papillary mucinous neoplasm (IPMN), which can be easily applied in daily practice and, importantly, adopted for any lesion types. BACKGROUND No predictive model for malignant IPMN has been widely applied in clinical practice. METHODS The clinical details of 466 patients with IPMN who underwent pancreatic resection at 3 hospitals were retrospectively analyzed for model development. Then, the model was validated in 664 surgically resected patients at 8 hospitals in Japan.In the preoperative examination, endoscopic ultrasonography (EUS) was considered to be essential to observe mural nodules in both the model development and external validation sets. Malignant IPMNs were defined as those with high-grade dysplasia and associated invasive carcinoma. RESULTS Of the 466 patients, 258 (55%) had malignant IPMNs (158 high-grade dysplasia, 100 invasive carcinoma), and 208 (45%) had benign IPMNs. Logistic regression analysis resulted in 3 variables (mural nodule size, main pancreatic duct diameter, and cyst size) being selected to construct the model. The area under the receiver operating characteristic curve (AUC) for the model was 0.763. In external validation sets, the pathological diagnosis was malignant and benign IPMN in 351 (53%) and 313 (47%) cases, respectively. For the external validation, the malignancy prediction ability of the model corresponded to an AUC of 0.725. CONCLUSION This predictive model provides important information for physicians and patients in assessing an individual's risk for malignancy and may help to identify patients who need surgery.
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11
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Park RHS, Lim GRS, Wu JJY, Koh YX, Teo JY, Cheow PC, Chan CY, Ooi LLPJ, Chung AYF, Goh BKP. Validation of the clinical utility of 4 guidelines in the initial triage of mucinous cystic lesions of the pancreas based on cross-sectional imaging: Experience with 188 surgically-treated patients. Eur J Surg Oncol 2020; 46:2114-2121. [PMID: 32828582 DOI: 10.1016/j.ejso.2020.07.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 07/10/2020] [Accepted: 07/19/2020] [Indexed: 11/30/2022] Open
Abstract
INTRODUCTION Over the years, several guidelines have been introduced to guide management of mucinous pancreatic cystic neoplasms (mPCN). In this study, we aimed to evaluate and compare the clinically utility of the Sendai-06, Fukuoka-12, Fukuoka-17 and European-18 guidelines in predicting malignancy of mPCN. METHODS One hundred and eighty-eight patients with mucinous cystic neoplasms (MCN) or intraductal papillary mucinous neoplasm (IPMN) who underwent surgery were retrospectively reviewed and classified under the 4 guidelines. Malignancy was defined as high grade dysplasia and invasive carcinoma. RESULTS Raised CA19-9>37U/ml, enhancing mural nodule≥5 mm and main pancreatic duct≥10 mm were significantly associated with malignancy on multivariate analysis. Increasing number of high risk features, absolute indications (European-18), worrisome risk or relative indications (European-18) were significantly associated with an increased likelihood of malignancy. The positive predictive values (PPV) of high risk features for Sendai-06, Fukuoka-12, Fukuoka-17 and absolute indications (European-18) for malignancy were 53%, 76%, 78% and 78% respectively. The negative predictive values (NPV) of the Sendai-06, Fukuoka-12 and Fukuoka-17 were 100%, while that of the European-18 was 92%. Risk of malignancy for patients with ≥4 worrisome features (Fukuoka-17) and ≥3 relative indications (European-18) was 66.7% and 75.0% respectively. CONCLUSIONS All 4 guidelines studied were useful in the initial triage of mPCN for the risk stratification of malignancy. The Fukuoka-17 had the highest PPV and NPV.
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Affiliation(s)
- Rachel H S Park
- Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Academia Level 5, 20 College Road, Singapore, 169856, Singapore; Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Singapore, 117597, Singapore
| | - Grace R S Lim
- Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Academia Level 5, 20 College Road, Singapore, 169856, Singapore; Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Singapore, 117597, Singapore
| | - Jania J Y Wu
- Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Academia Level 5, 20 College Road, Singapore, 169856, Singapore; Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Singapore, 117597, Singapore
| | - Ye-Xin Koh
- Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Academia Level 5, 20 College Road, Singapore, 169856, Singapore; Duke NUS Medical School, 8 College Road, Singapore, 169857, Singapore
| | - Jin-Yao Teo
- Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Academia Level 5, 20 College Road, Singapore, 169856, Singapore; Duke NUS Medical School, 8 College Road, Singapore, 169857, Singapore
| | - Peng-Chung Cheow
- Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Academia Level 5, 20 College Road, Singapore, 169856, Singapore; Duke NUS Medical School, 8 College Road, Singapore, 169857, Singapore
| | - Chung-Yip Chan
- Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Academia Level 5, 20 College Road, Singapore, 169856, Singapore; Duke NUS Medical School, 8 College Road, Singapore, 169857, Singapore
| | - London L P J Ooi
- Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Academia Level 5, 20 College Road, Singapore, 169856, Singapore; Duke NUS Medical School, 8 College Road, Singapore, 169857, Singapore
| | - Alexander Y F Chung
- Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Academia Level 5, 20 College Road, Singapore, 169856, Singapore; Duke NUS Medical School, 8 College Road, Singapore, 169857, Singapore
| | - Brian K P Goh
- Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Academia Level 5, 20 College Road, Singapore, 169856, Singapore; Duke NUS Medical School, 8 College Road, Singapore, 169857, Singapore.
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12
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Izumo W, Higuchi R, Furukawa T, Yazawa T, Uemura S, Shiihara M, Yamamoto M. Importance of each high-risk stigmata and worrisome features as a predictor of high-grade dysplasia in intraductal papillary mucinous neoplasms of the pancreas. Pancreatology 2020; 20:895-901. [PMID: 32624417 DOI: 10.1016/j.pan.2020.06.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/15/2020] [Accepted: 06/17/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND High-risk stigmata (HRS) and 'worrisome features' (WFs) are defined as predictive factors for malignancies of intraductal papillary mucinous neoplasms (IPMNs). We performed this study to determine the importance and odds ratio (OR) of each HRS and WFs as predictors for high-grade dysplasia (HGD). METHODS We analyzed 295 patients who underwent pancreatectomy for branch duct and mixed-type IPMN, and evaluated the association between HRS and WFs (as defined by the '2017 Fukuoka Consensus Guidelines') and HGD. RESULTS The proportions of patients with low-grade dysplasia (LGD), HGD, and invasive carcinoma were 47%, 28%, and 25%, respectively. Multivariate analysis comparing patients with LGD and HGD using all HRS and WFs revealed that an enhancing mural nodule ≥5 mm (OR: 4.1), pancreatitis (OR: 2.2), and thickened/enhancing cyst walls (OR: 2.2) were independent predictive factors for HGD. Based on the OR (the former factor is two points and the latter two factors are each one point), the incidence of HGD in patients with none (n = 43), one (n = 82), two (n = 25), three (n = 52), and four (n = 19) of these predictive factors were 9%, 26%, 52%, 62%, and 63%, respectively. Assuming a score of one or higher as a surgical indication, the sensitivity, specificity, positive predict value, and negative predict value of HGD were 95, 38, 44, and 91%. CONCLUSIONS Our derived scoring system using more important factors in HRS and WFs may be useful for predicting HGD and determining surgical indications of IPMN.
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Affiliation(s)
- Wataru Izumo
- Department of Surgery, Institute of Gastroenterology, Tokyo Woman's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Ryota Higuchi
- Department of Surgery, Institute of Gastroenterology, Tokyo Woman's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan.
| | - Toru Furukawa
- Department of Investigative Pathology, Tohoku University Graduate School of Medicine, 2-1 Seiryomachi, Aoba-ku, Sendai, 980-8575, Japan
| | - Takehisa Yazawa
- Department of Surgery, Institute of Gastroenterology, Tokyo Woman's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Shuichiro Uemura
- Department of Surgery, Institute of Gastroenterology, Tokyo Woman's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Masahiro Shiihara
- Department of Surgery, Institute of Gastroenterology, Tokyo Woman's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Masakazu Yamamoto
- Department of Surgery, Institute of Gastroenterology, Tokyo Woman's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
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13
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Uribarri-González L, Pérez-Cuadrado-Robles E, López-López S, Lariño-Noia J, Martínez-Moneo E, Iglesias-García J, Fernández-Urién-Sanz I, Vila-Costas J. Development of a new risk score for invasive cancer in branch-duct intraductal papillary mucinous neoplasms according to morphological characterization by EUS. Endosc Ultrasound 2020; 9:193-199. [PMID: 32584315 PMCID: PMC7430908 DOI: 10.4103/eus.eus_11_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Background and Objective The management of branch-duct intraductal papillary mucinous neoplasms (BD-IPMNs) is determined by a number of guidelines. The current weight of risk factors by EUS predicting invasive cancer is unknown. The aim of this study is to develop a risk score for early prediction of invasive cancer according to morphological characterization by EUS in a surgical cohort. Materials and Methods This is an observational, multicenter retrospective study. All consecutive patients with a histologically proven BD-IPMN who underwent previous EUS between 2005 and 2017 were included. Morphological features by EUS were evaluated. A score using a logistic regression model was performed to assess the risk of invasive cancer. Results Of 335 patients who underwent pancreatic surgery, 131 (median age: 66 years, 50.4% - male) were included. By multivariable analysis, lymph nodes (odds ratio [OR]: 17.7 [confidence interval (CI) 95%: 2.8-112.6], P = 0.002, 4 points), main pancreatic duct ≥10 mm (OR: 8.6 [CI 95%: 1.9-39.5], P = 0.006, 2 points), abrupt change of pancreatic duct (OR: 5.5 [CI 95%: 1.4-22.2], P = 0.016, 1.5 points), and solid component (OR: 4.2 [CI 95%: 1.3-13.6], P = 0.017, 1 point) were independent factors associated with invasive cancer and included in the model. The following categories of the score (0-8.5 points) - A (0-1), B (1.5-3), C (3.5-5), and D (5.5-8.5 points) - presented a positive predictive value of 8.5%, 38.9%, 62.5%, and 100%, respectively. The area under the curve was 0.857 (P < 0.001), with an overall sensitivity and specificity of 84% and 70% in the internal validation of the score. Conclusion This EUS predictive score for invasive cancer in BD-IPMN has a high accuracy and could be an additional tool to consider in patient management.
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Affiliation(s)
| | - Enrique Pérez-Cuadrado-Robles
- Department of Hepatogastroenterology, Cliniques Universitaires Saint-Luc, Université Catholique de Louvaine, Brussels, Belgium; Department of Gastroenterology, Georges-Pompidou European Hospital, Paris, France
| | - Soraya López-López
- Department of Gastroenterology, Complejo Hospitalario de Navarra, Pamplona, Spain
| | - José Lariño-Noia
- Department of Gastroenterology, Hospital Universitario de Santiago de Compostela, Santiago de Compostela, Santiago, Spain
| | - Emma Martínez-Moneo
- Department of Gastroenterology, Hospital Universitario de Cruces, Bilbao, Spain
| | - Julio Iglesias-García
- Department of Gastroenterology, Hospital Universitario de Santiago de Compostela, Santiago de Compostela, Santiago, Spain
| | | | - Juan Vila-Costas
- Department of Gastroenterology, Complejo Hospitalario de Navarra, Pamplona, Spain
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14
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Brunner M, Belyaev O, Bösch F, Müller-Debus CF, Radulova-Mauersberger O, Wellner UF, Keck T, Uhl W, Werner J, Witzigmann H, Grützmann R. [Indications for the Surgical Management of Pancreatic Cystic Lesions]. Zentralbl Chir 2020; 145:344-353. [PMID: 32498095 DOI: 10.1055/a-1158-9536] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A steady improvement in modern imaging as well as increasing age in society have led to an increasing number of cystic pancreatic tumours being detected. Pancreatic cysts are a clinically challenging entity because they span a broad biological spectrum and their differentiation is often difficult, especially in small tumours. Therefore, they require a differentiated indication for indication of surgery. To determine recommendations for the surgical indication in cystic tumours of the pancreas, a quality committee for pancreatic diseases of the German Society for General and Visceral Surgery performed a systematic literature search and created this review. Based on the current evidence, signs of malignancy and high-risk criteria (icterus due to cystic pancreatic duct obstruction in the bile duct, enhancing mural nodules ≥ 5 mm or solid components in the cyst or pancreatic duct ≥ 10 mm), as well as symptoms, are a surgical indication, independently of the cyst entity (except pseudocysts). If the entity of the pancreatic cyst is detectable by diagnostic imaging, all main duct IPMN and IPMN of the mixed type, all MCN > 4 cm and all SPN should be resected. SCN and branch-duct IPMN without worrisome features do not constitute an indication for surgery. The indication of operation in branch-duct IPMN with relative risk criteria and MCN < 4 cm is the subject of current discussions and should be individualised. By defining indication recommendations, the present work aims to improve the indication quality in cystic pancreatic tumours. However, the surgical indication should always be individualised, taking into account age, comorbidities and the patient's wishes.
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Affiliation(s)
- Maximilian Brunner
- Klinik für Allgemein- und Viszeralchirurgie, Universitätsklinikum Erlangen, Deutschland
| | - Orlin Belyaev
- Klinik für Allgemein- und Viszeralchirurgie, Universitätsklinikum St. Josef-Hospital Bochum, Deutschland
| | - Florian Bösch
- Klinik für Allgemein-, Viszeral- und Transplantationschirurgie, LMU, Klinikum der Universität München, Deutschland
| | | | | | | | - Tobias Keck
- Klinik für Chirurgie, Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Deutschland
| | - Waldemar Uhl
- Klinik für Allgemein- und Viszeralchirurgie, Universitätsklinikum St. Josef-Hospital Bochum, Deutschland
| | - Jens Werner
- Klinik für Allgemein-, Viszeral- und Transplantationschirurgie, LMU, Klinikum der Universität München, Deutschland
| | - Helmut Witzigmann
- Klinik für Allgemein- und Viszeralchirurgie, Städtisches Klinikum Dresden-Friedrichstadt, Deutschland
| | - Robert Grützmann
- Klinik für Allgemein- und Viszeralchirurgie, Universitätsklinikum Erlangen, Deutschland
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15
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Caravati A, Andrianello S, Pollini T, Biancotto M, Balduzzi A, Malleo G, Salvia R, Marchegiani G. Branch Duct Intraductal Papillary Mucinous Neoplasms: Recommendations for Follow-Up and Surgery. Scand J Surg 2020; 109:34-41. [PMID: 32009571 DOI: 10.1177/1457496919900414] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND AND AIMS Pancreatic cysts are increasingly diagnosed, mainly during abdominal imaging performed for other reasons. Between pancreatic cystic neoplasm, intraductal papillary mucinous neoplasms are the most common pre-malignant entities. Intraductal papillary mucinous neoplasms involving side branches overall harbor a low risk of malignancy, and in the recent past, a progressively more conservative approach has been consolidated. Purpose of this report is to summarize the evidence supporting the current practice for the management of branch duct intraductal papillary mucinous neoplasm and to offer a useful practical guide from first observation to post-operative follow-up. MATERIALS AND METHODS Review of the most important scientific literature on intraductal papillary mucinous neoplasms was made. In this review article, we also report the experience of a high volume center in managing Pancreatic cystic neoplasms. RESULTS The correct management during surveillance still is a matter of debate, since many guidelines have been published suggesting different clinical approaches. Recently, follow-up discontinuation has also been proposed in selected cases. CONCLUSION Despite significant improvements made by the increase of evidence, selecting surgical candidates because of an increased risk of malignant progression remains an unsolved issue and a hot topic for pancreatologists.
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Affiliation(s)
- A Caravati
- General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Verona, Italy
| | - S Andrianello
- General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Verona, Italy
| | - T Pollini
- General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Verona, Italy
| | - M Biancotto
- General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Verona, Italy
| | - A Balduzzi
- General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Verona, Italy
| | - G Malleo
- General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Verona, Italy
| | - R Salvia
- General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Verona, Italy
| | - G Marchegiani
- General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Verona, Italy
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16
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Keane MG, Dadds HR, El Sayed G, Luong TV, Davidson BR, Fusai GK, Thorburn D, Pereira SP. Clinical and radiological features that predict malignant transformation in cystic lesions of the pancreas: a retrospective case note review. ACTA ACUST UNITED AC 2020; 1:4. [PMID: 32322783 PMCID: PMC7176489 DOI: 10.12688/amrcopenres.12860.2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Background: Pancreatic cystic lesions (PCL) are being detected with increasing frequency. Current methods of stratifying risk of malignant transformation are imperfect. This study aimed to determine the frequency of pancreatic malignancy in patients with PCL and define clinical and radiological features that predict malignant transformation in patients managed by surgery and/or surveillance. Methods: A retrospective cohort of adults who were evaluated in a tertiary hepatopancreaticobiliary centre between January 2000 - December 2013 with a confirmed PCL and followed up for at least 5 years. All cystic lesions were discussed at a weekly multidisciplinary meeting. Results: Of the 1,090 patients diagnosed with a PCL, 768 patients were included in the study: 141 patients were referred for immediate pancreatic resection, 570 entered surveillance while 57 had a malignant PCL which was unresectable at diagnosis (n=47) or were unfit for surgery (n=10). In those who were resected following presentation, malignancy was present in 38%. During follow-up 2% of those entering a surveillance programme underwent malignant transformation. Clinical and radiological features associated with a high-risk PCL included older age, symptoms, associated solid component or dilated main pancreatic duct. In intraductal papillary mucinous neoplasms, larger size was not a feature of malignant transformation (benign vs. malignant 30mm vs. 23mm; P= 0.012). Conclusion: The sensitivity of standard diagnostic tests leading to immediate surgery for high-risk PCL (malignant or mucinous) was 92% but with a specificity of just 5%. Surveillance of PCL without high-risk features within a multidisciplinary meeting was associated with a low incidence of cancer development, supporting the use of worrisome clinical and radiological features in the initial stratification of PCL.
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Affiliation(s)
- Margaret G Keane
- Institute for Liver and Digestive Health, University College London, London, NW3 2QG, UK.,Department of Gastroenterology, University College London Hospitals NHS Trust, London, UK
| | - Hannah R Dadds
- Institute for Liver and Digestive Health, University College London, London, NW3 2QG, UK
| | - Ghassan El Sayed
- Department of Gastroenterology, University College London Hospitals NHS Trust, London, UK
| | - Tu Vinh Luong
- Institute for Liver and Digestive Health, University College London, London, NW3 2QG, UK.,Department of Cellular Pathology, University College London, London, UK
| | - Brian R Davidson
- Institute for Liver and Digestive Health, University College London, London, NW3 2QG, UK.,Department of HPB Surgery, Royal Free Hospital, London, NW3 2QG, UK
| | - Guiseppe K Fusai
- Institute for Liver and Digestive Health, University College London, London, NW3 2QG, UK.,Department of HPB Surgery, Royal Free Hospital, London, NW3 2QG, UK
| | - Douglas Thorburn
- Institute for Liver and Digestive Health, University College London, London, NW3 2QG, UK
| | - Stephen P Pereira
- Institute for Liver and Digestive Health, University College London, London, NW3 2QG, UK.,Department of Gastroenterology, University College London Hospitals NHS Trust, London, UK
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17
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Hirono S, Yamaue H. Surgical strategy for intraductal papillary mucinous neoplasms of the pancreas. Surg Today 2019; 50:50-55. [PMID: 31807871 PMCID: PMC6923258 DOI: 10.1007/s00595-019-01931-5] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 10/08/2019] [Indexed: 12/17/2022]
Abstract
The current treatment strategy for intraductal papillary mucinous neoplasms (IPMNs), based on the international consensus guideline, has been accepted widely. However, reported outcomes after surgical resection for IPMN show that once the tumor progresses to invasive intraductal papillary mucinous carcinoma (IPMC), recurrence is not uncommon. The surgical treatment for IPMN is invasive and sometimes followed by complications. Therefore, the best timing for resection might be at the point when high-grade dysplasia (HGD) is evident. According to previous reports, main duct type IPMN has a high malignant potential and its surgical resection is universally accepted, whereas, the incidence of HGD/invasive IPMC in branch duct and mixed type IPMNs is thought to be lower. In addition to mural nodules and a dilated main pancreatic duct, cytology and measurement of the carcinoembryonic antigen level in the pancreatic juice might be useful to differentiate HGD/invasive IPMC from low-grade dysplasia. The nomogram proposed recently to predict the risk of HGD/invasive IPMC in IPMN patients might help surgeons decide on the best treatment strategy, depending on the patient's age and general condition. Second resection for high-risk lesions in the remnant pancreas might improve the survival of IPMN patients.
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Affiliation(s)
- Seiko Hirono
- Second Department of Surgery, School of Medicine, Wakayama Medical University, 811-1 Kimiidera, Wakayama, 641-8510, Japan.
| | - Hiroki Yamaue
- Second Department of Surgery, School of Medicine, Wakayama Medical University, 811-1 Kimiidera, Wakayama, 641-8510, Japan
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18
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Wu J, Wang Y, Li Z, Miao H. Accuracy of Fukuoka and American Gastroenterological Association Guidelines for Predicting Advanced Neoplasia in Pancreatic Cyst Neoplasm: A Meta-Analysis. Ann Surg Oncol 2019; 26:4522-4536. [PMID: 31617119 DOI: 10.1245/s10434-019-07921-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND A differential diagnosis of advanced pancreatic cystic neoplasms (PCNs) is critical to determine optimal treatment. The Fukuoka and American Gastroenterological Association (AGA) guidelines are the most widely accepted criteria for the management of PCNs. OBJECTIVE This study aimed to evaluate the diagnostic value of these guidelines in predicting advanced neoplasia (AN). METHODS A comprehensive electronic search of the PubMed, EMBASE, Web of Science, Cochrane Library, and Scopus databases was conducted to identify all relevant studies evaluating the Fukuoka and AGA guidelines in surgically resected and histologically confirmed PCNs. Pooled sensitivity, specificity, and diagnostic odds ratios (DORs) were calculated as compound measures of diagnostic accuracy using the random-effects model. Summary of receiver operating characteristic (SROC) curves and the area under the curve (AUC) were also performed. RESULTS A total of 21 studies with 3723 patients were included in this meta-analysis. Of these studies, 15, 4, and 2 evaluated the Fukuoka guidelines, the AGA guidelines, and both guidelines, respectively. For AN prediction, the Fukuoka guidelines had a pooled sensitivity of 0.67 (95% confidence interval [CI] 0.64-0.70), pooled specificity of 0.64 (95% CI 0.62-0.66), and pooled DOR of 6.28 (95% CI 4.38-9.01), with an AUC of the SROC of 0.78. AGA guidelines showed a pooled sensitivity of 0.59 (95% CI 0.52-0.65), pooled specificity of 0.77 (95% CI 0.74-0.80), and pooled DOR of 5.84 (95% CI 2.60-13.15), with an AUC of 0.79 (95% CI 0.70-0.88). CONCLUSION When used alone, the Fukuoka and AGA guidelines showed similar but unsatisfactory diagnostic accuracy in the risk stratification of malignant potential of PCN. Thus, we recommend that they be applied only as a broad framework in clinical practice.
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Affiliation(s)
- Jiayuan Wu
- Department of Clinical Research, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, People's Republic of China.
| | - Yufeng Wang
- School of Public Health, Guangdong Medical University, Zhanjiang, People's Republic of China
| | - Zitao Li
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, People's Republic of China
| | - Huilai Miao
- Department of Clinical Research, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, People's Republic of China. .,Department of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, People's Republic of China.
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19
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"Trivial" Cysts Redefine the Risk of Cancer in Presumed Branch-Duct Intraductal Papillary Mucinous Neoplasms of the Pancreas: A Potential Target for Follow-Up Discontinuation? Am J Gastroenterol 2019; 114:1678-1684. [PMID: 31449158 DOI: 10.14309/ajg.0000000000000378] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVES The management of small and incidental branch duct intraductal papillary mucinous neoplasms (BD-IPMNs) still is of concern. The aim is assessing the safety of a surveillance protocol through the evaluation of their progression to malignancy. METHODS All presumed BD-IPMNs observed from 2000 to 2016 were included. Only patients presenting without worrisome features (WFs) and high-risk stigmata (HRS) at diagnosis were included. Development of WF, HRS, pancreatic cancer (PC), and survival were analyzed. BD-IPMNs were defined as trivial in the continuing absence of WF/HRS after 5 years of surveillance. The age-specific standardized incidence ratio of PC in the general population was used for comparison. RESULTS A total of 1,036 BD-IPMNs without WF/HRS at diagnosis were included, 4.2% developed WF or HRS, and 1.1% developed PC after a median of 62 months. The median cyst growth rate was 0 mm/yr. A growth rate ≥2.5 mm/yr and the development of WF resulted independent predictors of PC. The standardized incidence ratio of PC for trivial BD-IPMN (n = 378) was 22.45 (95% confidence interval 8.19-48.86), but considering only patients aged >65 years (n = 198), it decreased to 3.84 (95% confidence interval 0.77-11.20). DISCUSSION Surveillance of the vast majority of presumed BD-IPMNs is safe, as the risk of PC is comparable to postoperative mortality of pancreatic surgery. A growth rate ≥2.5 mm/yr is the main predictor of PC, reinforcing the role of repeated observations. A trivial BD-IPMN in patients aged >65 years might not increase the risk of developing PC compared with general population, identifying potential targets for follow-up discontinuation.
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Keegan MJ, Paranandi B. Diagnosis and management of pancreatic cystic neoplasms. Frontline Gastroenterol 2019; 10:300-308. [PMID: 31288258 PMCID: PMC6583589 DOI: 10.1136/flgastro-2018-101122] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 01/18/2019] [Accepted: 01/19/2019] [Indexed: 02/04/2023] Open
Abstract
This review outlines the current classification of pancreatic cystic lesions, with a particular emphasis on pancreatic cystic neoplasms (PCNs). It will describe the diagnostic approach to PCNs, with reference to clinicopathological features, cross-sectional radiology and endoscopic ultrasound. This review will conclude with an evidence-based discussion of the management of PCNs focused on recent clinical guidelines.
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Affiliation(s)
- Mathew James Keegan
- Gastroenterology, Northern Beaches Hospital, Sydney, New South Wales, Australia,Department of Gastroenterology, Peninsula Gastroenterology, Sydney, New South Wales, Australia
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Farrell JJ, Al-Haddad MA, Jackson SA, Gonda TA. Incremental value of DNA analysis in pancreatic cysts stratified by clinical risk factors. Gastrointest Endosc 2019; 89:832-841.e2. [PMID: 30447214 DOI: 10.1016/j.gie.2018.10.049] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 10/31/2018] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS We determined the incremental predictive value of pancreatic cyst fluid molecular analysis to assessing malignancy risk over long-term follow-up of a well-characterized cohort, given the underlying predictive value of imaging parameters routinely used to triage such patients. METHODS Patients who lacked initial cytologic malignancy in cyst fluid and had final pathology or a follow-up period of more than 2 years were included. Patient outcomes determined the malignancy-free survival of patients with high-risk stigmata (HRS), worrisome features (WFs), and DNA abnormalities. DNA analysis included 3 abnormalities: loss of heterozygosity mutations among a panel of tumor suppressor genes, Kras mutation, and elevated DNA quantity. RESULTS Included were 478 patients; 209 had surgical pathology-derived outcomes and 269 had clinical follow-up of >2 years. Eleven percent had malignant outcome. Forty-two patients had HRS, 272 lacked both HRS and WFs, and 164 lacked HRS but had WFs. DNA abnormalities did not statistically change long-term malignancy risk in patients with HRS or in patients lacking both HRS and WFs. Among patients with WFs, the presence of ≥2 DNA abnormalities significantly increased malignancy risk (relative risk, 5.2; P = .002) and the absence of all DNA abnormalities significantly decreased risk (relative risk, .4; P = .040). Sensitivity analysis confirmed results of survival analysis over differing baseline malignancy probabilities. CONCLUSIONS Our study defines the clinical characteristic of patients in which DNA abnormality testing has the greatest impact on patient outcomes. Use of DNA abnormality testing is supported in a carefully selected patient population limited to cysts with WFs.
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Affiliation(s)
- James J Farrell
- Yale Center for Pancreatic Disease, Section of Digestive Disease, Yale University, New Haven, Connecticut, USA
| | | | | | - Tamas A Gonda
- Division of Digestive and Liver Disease, Department of Medicine, Columbia University Medical Center, New York, New York, USA
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22
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Abstract
Intraductal papillary mucinous neoplasm (IPMN) is the most common pancreatic cystic neoplasm (PCN). The increased attention to IPMN is due to its unique features of malignant progression, being different between main duct IPMN and branch duct IPMN, and increased de novo development of conventional pancreatic ductal adenocarcinoma elsewhere in the pancreas. The increased interest in IPMN led to publication of many guidelines on its clinical management. This chapter aims to summarize and compare characteristics of nine guidelines on the clinical management of IPMN and other PCNs published in the English literature and further to show a current strategy for surgical decision making in the management of IPMN.
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Affiliation(s)
- Masao Tanaka
- Shimonoseki City Hospital, Kyushu University, Shimonoseki, Yamaguchi, Japan.
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DiMaio CJ. Current Guideline Controversies in the Management of Pancreatic Cystic Neoplasms. Gastrointest Endosc Clin N Am 2018; 28:529-547. [PMID: 30241642 DOI: 10.1016/j.giec.2018.05.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Pancreatic cystic lesions are a common clinical entity. The majority are neoplastic and have the potential for malignant transformation. To assist with patient management, a number of clinical guidelines have been developed over the past decade. However, controversies exist in regards to the various guidelines and treatment strategies they offer. This article will review the various clinical guidelines for management of pancreatic cysts, describe the limitations of these guidelines, and present future directions for improvement in clinical decision making for patients diagnosed with a pancreatic cystic neoplasm.
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Affiliation(s)
- Christopher J DiMaio
- Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1069, New York, NY 10029, USA.
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Marchegiani G, Andrianello S, Morbin G, Secchettin E, D'Onofrio M, De Robertis R, Malleo G, Bassi C, Salvia R. Importance of main pancreatic duct dilatation in IPMN undergoing surveillance. Br J Surg 2018; 105:1825-1834. [PMID: 30106195 DOI: 10.1002/bjs.10948] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 05/09/2018] [Accepted: 06/14/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND The association between risk of pancreatic cancer and a dilated main pancreatic duct (MPD) in intraductal papillary mucinous neoplasm (IPMN) is debated. The aim of this study was to assess the role of MPD size in predicting pancreatic cancer in resected IPMNs and those kept under surveillance. METHODS All patients with IPMN referred to the Pancreas Institute, University of Verona Hospital Trust, from 2006 to 2016 were included. The primary endpoint was the occurrence of malignancy detected at surgery or during follow-up. RESULTS The final cohort consisted of 1688 patients with a median follow-up of 60 months. Main pancreatic duct dilatation was associated with other features of malignancy in both the resected and surveillance groups. In patients who underwent resection, only a MPD of at least 10 mm was an independent predictor of malignancy. In patients kept under surveillance, MPD dilatation was not associated with malignancy. Fifteen of 71 patients (21 per cent) with malignancy in the resection cohort had a dilated MPD alone, whereas only one of 30 (3 per cent) under surveillance with MPD dilatation alone developed malignancy. Patients with a dilated MPD and other worrisome features had an increased 5-year cumulative incidence of malignancy compared with those with a non-dilated duct (11 versus 1·2 per cent; P < 0·001); however, the risk of malignancy was not significantly increased in patients with a dilated MPD alone (4 versus 1·2 per cent; P = 0·448). CONCLUSION In patients under surveillance, a dilated MPD alone was not associated with an increased incidence of malignancy in IPMN.
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Affiliation(s)
- G Marchegiani
- Department of Surgery and Oncology, General and Pancreatic Surgery, Pancreas Institute, University of Verona Hospital Trust, Verona, Italy
| | - S Andrianello
- Department of Surgery and Oncology, General and Pancreatic Surgery, Pancreas Institute, University of Verona Hospital Trust, Verona, Italy
| | - G Morbin
- Department of Surgery and Oncology, General and Pancreatic Surgery, Pancreas Institute, University of Verona Hospital Trust, Verona, Italy
| | - E Secchettin
- Department of Surgery and Oncology, General and Pancreatic Surgery, Pancreas Institute, University of Verona Hospital Trust, Verona, Italy
| | - M D'Onofrio
- Department of Radiology, Pancreas Institute, University of Verona Hospital Trust, Verona, Italy
| | - R De Robertis
- Department of Radiology, Casa di Cura Pederzoli, Peschiera del Garda, Italy
| | - G Malleo
- Department of Surgery and Oncology, General and Pancreatic Surgery, Pancreas Institute, University of Verona Hospital Trust, Verona, Italy
| | - C Bassi
- Department of Surgery and Oncology, General and Pancreatic Surgery, Pancreas Institute, University of Verona Hospital Trust, Verona, Italy
| | - R Salvia
- Department of Surgery and Oncology, General and Pancreatic Surgery, Pancreas Institute, University of Verona Hospital Trust, Verona, Italy
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Watanabe Y, Niina Y, Nishihara K, Okayama T, Tamiya S, Nakano T. Neutrophil-to-lymphocyte ratio and mural nodule height as predictive factors for malignant intraductal papillary mucinous neoplasms. Acta Chir Belg 2018; 118:239-245. [PMID: 29334845 DOI: 10.1080/00015458.2018.1427329] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Accurate preoperative prediction for malignant IPMN is still challenging. The aim of this study was to investigate the validity of neutrophil-to-lymphocyte ratio (NLR) and mural nodule height (MNH) for predicting malignant intraductal papillary mucinous neoplasm (IPMN). METHODS The medical records of 60 patients who underwent pancreatectomy for IPMN were retrospectively reviewed. RESULTS NLR tended to be higher in malignant IPMN (median: 2.23) than in benign IPMN (median: 2.04; p = .14). MNH was significantly greater in malignant IPMN (median: 16 mm) than in benign IPMN (median: 8 mm; p < .01). The optimal cutoff values for the NLR and MNH were 3.60 and 11 mm, respectively. The sensitivity and specificity of NLR ≥3.60 for predicting malignant IPMN were 40% and 93%, and those of MNH ≥11 mm were 73% and 77%, respectively. Univariate analysis revealed that NLR ≥3.60 (p < .01) and MNH ≥11 mm (p < .01) were significant predictive factors. On multivariate analysis, enhanced solid component was identified as an independent factor, but NLR ≥3.60 and MNH ≥11 mm were not. CONCLUSIONS NLR and MNH are suboptimal tests in predicting malignant IPMN; however, they can be useful to assist in clinical decision-making.
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Affiliation(s)
- Yusuke Watanabe
- Departments of Surgery, Kitakyushu Municipal Medical Center, Kitakyushu, Japan
| | - Yusuke Niina
- Department of Gastroenterology, Kitakyushu Municipal Medical Center, Kitakyushu, Japan
| | - Kazuyoshi Nishihara
- Departments of Surgery, Kitakyushu Municipal Medical Center, Kitakyushu, Japan
| | - Takafumi Okayama
- Departments of Surgery, Kitakyushu Municipal Medical Center, Kitakyushu, Japan
| | - Sadafumi Tamiya
- Department of Pathology, Kitakyushu Municipal Medical Center, Kitakyushu, Japan
| | - Toru Nakano
- Departments of Surgery, Kitakyushu Municipal Medical Center, Kitakyushu, Japan
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Andrianello S, Falconi M, Salvia R, Crippa S, Marchegiani G. Surveillance of Cystic Lesions of the Pancreas: Whom and How to Survey? Visc Med 2018; 34:202-205. [PMID: 30140686 DOI: 10.1159/000489240] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The sudden prevalence increase of pancreatic cystic neoplasms (PCN) related to the use of cross-sectional imaging has raised several concerns. Even if there is a tangible risk of progression towards pancreatic cancer (PC), surgical resection cannot be offered to all patients due to the high risk of morbidity and mortality. Available guidelines are useful tools to identify patients at higher risk for harboring cancer thanks to their sensitivity. Because of their low specificity, however, such a risk is often overestimated. Recent evidence deriving from large observational series of surveilled patients suggests that the overall risk of PC is low. A large proportion of patients affected by PCN can be safely observed over time. Several follow-up schedules have been proposed in guidelines but none of them proved to be the most cost-effective. Moreover, it must still be demonstrated that any surveillance protocol can be associated with a reduction in PC-related mortality. By now, with most studies reporting a lifelong risk of malignancy, the only evidence-based recommendation regarding surveillance is that follow-up should never be discontinued as repeated observations are crucial for PC risk stratification.
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Affiliation(s)
- Stefano Andrianello
- Pancreatic Surgery Unit of the Department of Surgery, Verona University Hospital, Verona, Italy
| | - Massimo Falconi
- Pancreatic Surgery Unit, Pancreas Translational and Clinical Research Centre, San Raffaele Scientific Institute, 'Vita-Salute' University, Milan, Italy
| | - Roberto Salvia
- Pancreatic Surgery Unit of the Department of Surgery, Verona University Hospital, Verona, Italy
| | - Stefano Crippa
- Pancreatic Surgery Unit, Pancreas Translational and Clinical Research Centre, San Raffaele Scientific Institute, 'Vita-Salute' University, Milan, Italy
| | - Giovanni Marchegiani
- Pancreatic Surgery Unit of the Department of Surgery, Verona University Hospital, Verona, Italy
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Abstract
Evidence-based guidelines on the management of pancreatic cystic neoplasms (PCN) are lacking. This guideline is a joint initiative of the European Study Group on Cystic Tumours of the Pancreas, United European Gastroenterology, European Pancreatic Club, European-African Hepato-Pancreato-Biliary Association, European Digestive Surgery, and the European Society of Gastrointestinal Endoscopy. It replaces the 2013 European consensus statement guidelines on PCN. European and non-European experts performed systematic reviews and used GRADE methodology to answer relevant clinical questions on nine topics (biomarkers, radiology, endoscopy, intraductal papillary mucinous neoplasm (IPMN), mucinous cystic neoplasm (MCN), serous cystic neoplasm, rare cysts, (neo)adjuvant treatment, and pathology). Recommendations include conservative management, relative and absolute indications for surgery. A conservative approach is recommended for asymptomatic MCN and IPMN measuring <40 mm without an enhancing nodule. Relative indications for surgery in IPMN include a main pancreatic duct (MPD) diameter between 5 and 9.9 mm or a cyst diameter ≥40 mm. Absolute indications for surgery in IPMN, due to the high-risk of malignant transformation, include jaundice, an enhancing mural nodule >5 mm, and MPD diameter >10 mm. Lifelong follow-up of IPMN is recommended in patients who are fit for surgery. The European evidence-based guidelines on PCN aim to improve the diagnosis and management of PCN.
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28
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Elta GH, Enestvedt BK, Sauer BG, Lennon AM. ACG Clinical Guideline: Diagnosis and Management of Pancreatic Cysts. Am J Gastroenterol 2018; 113:464-479. [PMID: 29485131 DOI: 10.1038/ajg.2018.14] [Citation(s) in RCA: 349] [Impact Index Per Article: 58.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Accepted: 01/05/2018] [Indexed: 02/07/2023]
Abstract
Pancreatic cysts are very common with the majority incidentally identified. There are several types of pancreatic cysts; some types can contain cancer or have malignant potential, whereas others are benign. However, even the types of cysts with malignant potential rarely progress to cancer. At the present time, the only viable treatment for pancreatic cysts is surgical excision, which is associated with a high morbidity and occasional mortality. The small risk of malignant transformation, the high risks of surgical treatment, and the lack of high-quality prospective studies have led to contradictory recommendations for their immediate management and for their surveillance. This guideline will provide a practical approach to pancreatic cyst management and recommendations for cyst surveillance for the general gastroenterologist.
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Affiliation(s)
- Grace H Elta
- Division of Gastroenterology, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Brintha K Enestvedt
- Division of Gastroenterology, Oregon Health and Sciences University, Portland, Oregon, USA
| | - Bryan G Sauer
- Division of Gastroenterology, University of Virginia, Charlottesville, Virginia, USA
| | - Anne Marie Lennon
- Division of Gastroenterology, The Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
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Evaluation of the International Consensus Guidelines for the Surgical Resection of Intraductal Papillary Mucinous Neoplasms. Dig Dis Sci 2018; 63:860-867. [PMID: 28667432 DOI: 10.1007/s10620-017-4667-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Accepted: 06/26/2017] [Indexed: 12/18/2022]
Abstract
BACKGROUND International consensus guidelines for intraductal papillary mucinous neoplasms (IPMNs) were revised in 2012. AIMS We aimed to evaluate the clinical utility of each predictor in the 2006 and 2012 guidelines and validate the diagnostic value and surgical indications. METHODS Forty-two patients with surgically resected IPMNs were included. Each predictor was applied to evaluate its diagnostic value. RESULTS The 2012 guidelines had greater accuracy for invasive carcinoma than the 2006 guidelines (64.3 vs. 31.0%). Moreover, the accuracy for high-grade dysplasia was also increased (48.6 vs. 77.1%). When the main pancreatic duct (MPD) size ≥8 mm was substituted for MPD size ≥10 mm in the 2012 guidelines, the accuracy for high-grade dysplasia was 80.0%. CONCLUSIONS The 2012 guidelines exhibited increased diagnostic accuracy for invasive IPMN. It is important to consider surgical resection prior to invasive carcinoma, and high-risk stigmata might be a useful diagnostic criterion. Furthermore, MPD size ≥8 mm may be predictive of high-grade dysplasia.
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30
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Hoshi H, Zaheer A, El Abiad RG, Maxwell JE, Chu LC, Gerke H, Chan CH. Management of pancreatic intraductal papillary mucinous neoplasm. Curr Probl Surg 2018; 55:126-152. [DOI: 10.1067/j.cpsurg.2018.03.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Accepted: 03/11/2018] [Indexed: 12/16/2022]
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The 2012 International Consensus Guidelines of Intraductal Papillary Mucinous Neoplasms of the Pancreas (Fukuoka Criteria) Predict the Malignant Potential, Even in Actual Clinical Situations. Pancreas 2018; 47:285-290. [PMID: 29401172 DOI: 10.1097/mpa.0000000000001001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
OBJECTIVES The aim of the present study was to validate the use of the 2012 International Consensus Guidelines for intraductal papillary mucinous neoplasm (IPMN) (Fukuoka criteria) in patients without findings of obstructive jaundice and/or an enhanced solid component. METHODS This retrospective study included patients who underwent pancreatectomy for IPMN between October 2002 and September 2016. The sensitivity, specificity, and positive and negative predictive values for malignancy were calculated for each feature of high-risk stigmata. RESULTS Of the 135 patients who underwent surgery for IPMN, 50 (37.0%) had low/intermediate-grade dysplasia, 25 (18.5%) had high-grade dysplasia, and the remaining 60 (44.5%) had invasive carcinoma. A malignant potential was, thus, present in 63% of all resected cases. Considering an actual clinical situation, the predictors for malignant potential were assessed in 62 patients without findings of obstructive jaundice and/or an enhanced solid component. A multivariate analysis revealed that the Fukuoka criteria were the only independent factor for predicting the malignant potential (odds ratio, 5.69; P = 0.036). CONCLUSIONS The present study suggested that malignant potential can be accurately detected by faithfully keeping to the Fukuoka criteria. Using these criteria enables us to identify patients with malignant potential, even in the actual clinical situations.
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Vanella G, Crippa S, Archibugi L, Arcidiacono PG, Delle Fave G, Falconi M, Capurso G. Meta-analysis of mortality in patients with high-risk intraductal papillary mucinous neoplasms under observation. Br J Surg 2018; 105:328-338. [PMID: 29405253 DOI: 10.1002/bjs.10768] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 06/25/2017] [Accepted: 10/26/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND Although consensus guidelines suggest that patients with high-risk intraductal papillary mucinous neoplasms (IPMNs) should have surgery, a non-operative strategy is often selected in patients who are poor surgical candidates. The aim was to determine the risk of disease-related death from IPMN in patients with worrisome features or high-risk stigmata who were kept under observation. METHODS A PubMed literature search was undertaken of articles published from August 1992 to June 2016 (updated October 2017). The methodology was developed from PRISMA and MOOSE checklists. Incidence proportions and rates of overall and IPMN-related deaths were calculated, with subgroup analyses for main-duct/mixed-type and branch-duct IPMNs. Quality of the studies, publication bias and heterogeneity were explored. RESULTS Six studies reported data on overall mortality and eight described disease-specific mortality for 556 patients during follow-up ranging from 24·9 to 60·0 months. Pooled rates of overall and IPMN-related mortality were 30·9 (95 per cent c.i. 19·6 to 45·1) and 11·6 (6·0 to 21·2) per cent respectively. The pooled incidence rate for overall mortality was substantially higher than that for IPMN-related mortality: 78 (95 per cent c.i. 44 to 111) and 23 (9 to 37) per 1000 patient-years respectively. The pooled incidence rate for disease-specific mortality was considerably lower for branch-duct than for main-duct or mixed-type IPMNs: 5 (0 to 10) and 32 (12 to 52) per 1000 patient-years respectively. CONCLUSION In patients unfit for surgery, IPMN-related mortality among patients with worrisome features and high-risk stigmata is low, and the risk of death from other causes much higher.
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Affiliation(s)
- G Vanella
- Digestive and Liver Disease Unit, Sant'Andrea Hospital, Faculty of Medicine and Psychology, Sapienza University of Rome, Rome, Italy
| | - S Crippa
- Pancreatic Surgery Unit, Pancreas Translational and Clinical Research Centre, San Raffaele Scientific Institute, 'Vita-Salute' University, Milan, Italy
| | - L Archibugi
- Digestive and Liver Disease Unit, Sant'Andrea Hospital, Faculty of Medicine and Psychology, Sapienza University of Rome, Rome, Italy
| | - P G Arcidiacono
- Pancreato-Biliary Endoscopy Division and Endosonography Division, Pancreas Translational and Clinical Research Centre, San Raffaele Scientific Institute, Milan, Italy
| | - G Delle Fave
- Digestive and Liver Disease Unit, Sant'Andrea Hospital, Faculty of Medicine and Psychology, Sapienza University of Rome, Rome, Italy
| | - M Falconi
- Pancreatic Surgery Unit, Pancreas Translational and Clinical Research Centre, San Raffaele Scientific Institute, 'Vita-Salute' University, Milan, Italy
| | - G Capurso
- Digestive and Liver Disease Unit, Sant'Andrea Hospital, Faculty of Medicine and Psychology, Sapienza University of Rome, Rome, Italy
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Heckler M, Brieger L, Heger U, Pausch T, Tjaden C, Kaiser J, Tanaka M, Hackert T, Michalski CW. Predictive performance of factors associated with malignancy in intraductal papillary mucinous neoplasia of the pancreas. BJS Open 2018; 2:13-24. [PMID: 29951625 PMCID: PMC5989990 DOI: 10.1002/bjs5.38] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Accepted: 11/17/2017] [Indexed: 12/17/2022] Open
Abstract
Background Estimation of the risk of malignancy in intraductal papillary mucinous neoplasia (IPMN) of the pancreas is a clinical challenge. Several routinely used clinical factors form the basis of the current consensus guidelines. This study aimed to determine the predictive values of the most commonly assessed risk factors. Methods A meta-analysis of individual risk factors of malignancy in IPMN was performed. Contingency tables were derived from these data, and sensitivity, specificity, negative and positive predictive values, and diagnostic odds ratios (DOR) were determined. Hierarchical summary receiver operating characteristic (HSROC) curves for each factor were calculated and the respective area under the curve (AUC) was assessed. Results A total of 3443 studies were screened initially. Analysis of recent literature revealed 60 studies with 13 relevant risk factors including clinical, serological and radiological parameters. The largest area under the HSROC curve was found for weight loss (0·84) and jaundice/raised bilirubin level (0·80), followed by increased carcinoembryonic antigen (CEA) (0·79) or carbohydrate antigen (CA) 19-9 (0·78) levels. The most sensitive factors were patient age (71 per cent) and mural nodules (65 per cent), and jaundice/raised bilirubin level (97 per cent) and increased CEA level (95 per cent) were most specific. None of the analysed factors reached a positive or negative level of prediction beyond 90 per cent. Conclusion None of the established criteria safely distinguishes malignant from non-malignant lesions.
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Affiliation(s)
- M Heckler
- Department of Surgery Heidelberg University Hospital Im Neuenheimer Feld 110, 69120 Heidelberg Germany
| | - L Brieger
- Department of Surgery Heidelberg University Hospital Im Neuenheimer Feld 110, 69120 Heidelberg Germany
| | - U Heger
- Department of Surgery Heidelberg University Hospital Im Neuenheimer Feld 110, 69120 Heidelberg Germany
| | - T Pausch
- Department of Surgery Heidelberg University Hospital Im Neuenheimer Feld 110, 69120 Heidelberg Germany
| | - C Tjaden
- Department of Surgery Heidelberg University Hospital Im Neuenheimer Feld 110, 69120 Heidelberg Germany
| | - J Kaiser
- Department of Surgery Heidelberg University Hospital Im Neuenheimer Feld 110, 69120 Heidelberg Germany
| | - M Tanaka
- Department of Surgery Heidelberg University Hospital Im Neuenheimer Feld 110, 69120 Heidelberg Germany
| | - T Hackert
- Department of Surgery Heidelberg University Hospital Im Neuenheimer Feld 110, 69120 Heidelberg Germany
| | - C W Michalski
- Department of Surgery Heidelberg University Hospital Im Neuenheimer Feld 110, 69120 Heidelberg Germany
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New guidelines for use of endoscopic ultrasound for evaluation and risk stratification of pancreatic cystic lesions may be too conservative. Surg Endosc 2017; 32:2420-2426. [PMID: 29288277 DOI: 10.1007/s00464-017-5941-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 10/17/2017] [Indexed: 12/11/2022]
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35
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Marchegiani G, Andrianello S, Perri G, Bonamini D, De Robertis R, Malleo G, Bassi C, Salvia R. Vanishing Pancreatic Cysts during Follow-Up: Another Step Towards De-Emphasizing Cyst Size as a Major Clinical Predictor of Malignancy. Dig Surg 2017; 35:508-513. [PMID: 29232660 DOI: 10.1159/000485199] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 11/09/2017] [Indexed: 12/12/2022]
Abstract
INTRODUCTION In the management of pancreatic cystic neoplasms (PCN), size plays a crucial role as the expression of disease progression. While many evidences regarding the natural history of growing pancreatic cysts exist, almost no data are available regarding cysts with a reduction in size. METHODS Radiological and clinical data from patients of the dedicated pancreatic cysts outpatient clinic of the Department of General and Pancreatic Surgery, University of Verona Hospital were retrospectively reviewed. Patients diagnosed with PCNs reducing in size during follow-up were reviewed. RESULTS From a total of 3,146 patients, we identified 12 (0.38%) vanishing/reducing cysts without a history of pancreatitis. Most of them were presumed IPMN (66.6%). The median follow-up was 69 months and the median cyst's size 30 mm (range 10-49). Most of the patients (75%) experienced a reduction in cyst size (median reduction of 8 mm, range 6-22) after a median time of 12 months (range 6-63), 3 patients experienced a complete disappearance of the cyst. CONCLUSION Cyst size reduction during follow-up is a rare phenomenon of unknown explanation. It adds to the debate regarding the role of size as a clinical predictor whenever a definite diagnosis of a PCN cannot be reached.
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Affiliation(s)
- Giovanni Marchegiani
- Department of General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Verona, Italy
| | - Stefano Andrianello
- Department of General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Verona, Italy
| | - Giampaolo Perri
- Department of General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Verona, Italy
| | - Deborah Bonamini
- Department of General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Verona, Italy
| | | | - Giuseppe Malleo
- Department of General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Verona, Italy
| | - Claudio Bassi
- Department of General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Verona, Italy
| | - Roberto Salvia
- Department of General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Verona, Italy
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36
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Li S, Fuhler GM, Bn N, Jose T, Bruno MJ, Peppelenbosch MP, Konstantinov SR. Pancreatic cyst fluid harbors a unique microbiome. MICROBIOME 2017; 5:147. [PMID: 29122007 PMCID: PMC5680603 DOI: 10.1186/s40168-017-0363-6] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Accepted: 10/19/2017] [Indexed: 05/02/2023]
Abstract
BACKGROUND It is clear that specific intestinal bacteria are involved in the development of different premalignant conditions along the gastrointestinal tract. An analysis of the microbial constituents in the context of pancreatic cystic lesions has, however, as yet not been performed. This consideration prompted us to explore whether endoscopically obtained pancreatic cyst fluids (PCF) contain bacterial DNA and to determine the genera of bacteria present in such material. METHODS Total DNA was isolated from 69 PCF samples. Bacterial 16S rRNA gene-specific PCR was performed followed by Sanger sequencing and de novo deep sequencing for the V3-V4 variable region of 16S rRNA gene. RESULTS We observed that 98.2% of the samples were positive in conventional PCR, and that 100% of selected PCF samples (n = 33) were positive for bacterial microbiota as determined by next generation sequencing (NGS). Comprehensive NGS data analysis of PCF showed the presence of 408 genera of bacteria, of which 17 bacterial genera were uniquely abundant to PCF, when compared to the Human Microbiome Project (HMP) database and 15 bacterial microbiota were uniquely abundant in HMP only. Bacteroides spp., Escherichia/Shigella spp., and Acidaminococcus spp. which were predominant in PCF, while also a substantial Staphylococcus spp. and Fusobacterium spp. component was detected. CONCLUSION These results reveal and characterize an apparently specific bacterial ecosystem in pancreatic cyst fluid samples and may reflect the local microbiota in the pancreas. Some taxa with potential deleterious functions are present in the bacterial abundance profiles, suggesting that the unique microbiome in this specific niche may contribute to neoplastic processes in the pancreas. Further studies are needed to explore the intricate relationship between pathophysiological status in the host pancreas and its microbiota.
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Affiliation(s)
- Shan Li
- Department of Gastroenterology and Hepatology, Erasmus MC - University Medical Center Rotterdam, 's Gravendijkwal 230, 3015 CE, Rotterdam, The Netherlands
| | - Gwenny M Fuhler
- Department of Gastroenterology and Hepatology, Erasmus MC - University Medical Center Rotterdam, 's Gravendijkwal 230, 3015 CE, Rotterdam, The Netherlands
| | - Nahush Bn
- Clevergene Biocorp Private Limited, Bangalore, India
| | - Tony Jose
- Clevergene Biocorp Private Limited, Bangalore, India
| | - Marco J Bruno
- Department of Gastroenterology and Hepatology, Erasmus MC - University Medical Center Rotterdam, 's Gravendijkwal 230, 3015 CE, Rotterdam, The Netherlands
| | - Maikel P Peppelenbosch
- Department of Gastroenterology and Hepatology, Erasmus MC - University Medical Center Rotterdam, 's Gravendijkwal 230, 3015 CE, Rotterdam, The Netherlands
- Erasmus Medical Center Cancer Institute, Rotterdam, The Netherlands
| | - Sergey R Konstantinov
- Department of Gastroenterology and Hepatology, Erasmus MC - University Medical Center Rotterdam, 's Gravendijkwal 230, 3015 CE, Rotterdam, The Netherlands.
- Janssen Vaccines and Prevention B.V., Leiden, The Netherlands.
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Zhou W, Xu Y, Rong Y, Wu W, Kuang T, Xin B, Zhu H, Lou W, Wang D. Validation of Sendai and Fukuoka consensus guidelines in predicting malignancy in patients with preoperatively diagnosed mucinous pancreatic cystic neoplasms. J Surg Oncol 2017; 117:409-416. [PMID: 29044541 DOI: 10.1002/jso.24882] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 09/18/2017] [Indexed: 01/04/2023]
Affiliation(s)
- Wentao Zhou
- Department of General Surgery, Zhong Shan Hospital, Fudan University, Shanghai, China
| | - Yadong Xu
- Department of Pancreatic Surgery, Zhong Shan Hospital, Fudan University, Shanghai, China
| | - Yefei Rong
- Department of General Surgery, Zhong Shan Hospital, Fudan University, Shanghai, China
| | - Wenchuan Wu
- Department of Pancreatic Surgery, Zhong Shan Hospital, Fudan University, Shanghai, China
| | - Tiantao Kuang
- Department of General Surgery, Zhong Shan Hospital, Fudan University, Shanghai, China
| | - Baobao Xin
- Department of General Surgery, Zhong Shan Hospital, Fudan University, Shanghai, China
| | - Hongxu Zhu
- Department of General Surgery, Zhong Shan Hospital, Fudan University, Shanghai, China
| | - Wenhui Lou
- Department of Pancreatic Surgery, Zhong Shan Hospital, Fudan University, Shanghai, China
| | - Dansong Wang
- Department of General Surgery, Zhong Shan Hospital, Fudan University, Shanghai, China
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Ridtitid W, Al-Haddad MA. Endoscopic Ultrasound Imaging for Diagnosing and Treating Pancreatic Cysts. Gastrointest Endosc Clin N Am 2017; 27:615-642. [PMID: 28918802 DOI: 10.1016/j.giec.2017.06.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Cystic pancreatic lesions are increasingly diagnosed owing to the abundant use of cross-sectional imaging. Given their malignant potential, true pancreatic cysts should be considered for resection or periodic follow-up. Cystic lesions of the pancreas (CLPs) require further evaluation and management. Therefore, it is important to establish a solid diagnosis at the time of detection. Endoscopic ultrasound examination is the imaging modality of choice. Fine needle aspiration provides fluid for cytologic, biochemical, and molecular assays to classify lesions and predict biological behavior. This review provides an overview of the diagnosis and management of various types of commonly encountered true CLPs.
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Affiliation(s)
- Wiriyaporn Ridtitid
- Division of Gastroenterology and Hepatology, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok 10330, Thailand
| | - Mohammad A Al-Haddad
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, 550 North University Boulevard, Suite 4100, Indianapolis, IN 46202, USA.
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Neutrophil-to-lymphocyte Ratio is a Predictive Marker for Invasive Malignancy in Intraductal Papillary Mucinous Neoplasms of the Pancreas. Ann Surg 2017; 266:339-345. [PMID: 27631774 DOI: 10.1097/sla.0000000000001988] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVE To evaluate the correlation between neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) values, and the presence of invasive carcinoma in patients with intraductal papillary mucinous neoplasm (IPMN). BACKGROUND NLR and (PLR) are inflammatory markers that have been associated with overall survival in patients with invasive malignancies, including pancreatic cancer. METHODS We retrospectively reviewed 272 patients who underwent surgical resection for histologically confirmed IPMN from January 1997 to July 2015. NLR and PLR were calculated and coevaluated with additional demographic, clinical, and imaging data for possible correlation with IPMN-associated carcinoma in the form of a predictive nomogram. RESULTS NLR and PLR were significantly elevated in patients with IPMN-associated invasive carcinoma (P < 0.001). In the multivariate analysis, NLR value higher than 4 (P < 0.001), IPMN cyst of size more than 3 cm (P < 0.001), presence of enhanced solid component (P = 0.014), main pancreatic duct dilatation of more than 5 mm (P < 0.001), and jaundice (P < 0.001) were statistically significant variables. The developed statistical model has a c-index of 0.895. Implementation of the statistically significant variables in a predictive nomogram provided a reliable point system for estimating the presence of IPMN-associated invasive carcinoma. CONCLUSIONS NLR is an independent predictive marker for the presence of IPMN-associated invasive carcinoma. Further prospective studies are needed to assess the predictive ability of NLR and how it can be applied in the clinical setting.
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Comparison between MRI with MR cholangiopancreatography and endoscopic ultrasonography for differentiating malignant from benign mucinous neoplasms of the pancreas. Eur Radiol 2017; 28:179-187. [PMID: 28779397 DOI: 10.1007/s00330-017-4926-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 06/01/2017] [Accepted: 06/05/2017] [Indexed: 01/04/2023]
Abstract
OBJECTIVE To compare diagnostic performance of magnetic resonance imaging (MRI) and endoscopic ultrasonography (EUS) for differentiating malignant from benign intraductal papillary mucinous neoplasms (IPMN) and mucinous cystic neoplasms (MCN) of the pancreas. METHODS This retrospective study included 55 patients with 47 surgically confirmed IPMNs (12 malignant, 35 benign) and eight MCNs (two malignant, six benign) who underwent contrast-enhanced pancreas MRI and EUS. Contrast enhancement was not routinely used at EUS examination. Two observers independently evaluated the MRIs, and another reviewed EUS images. They recorded their confidence for malignancy with each imaging modality. We calculated diagnostic performance using the area under the receiver operating characteristic curves (A z ), and to determine the accuracy, sensitivity, specificity, and positive (PPV) and negative predictive (NPV) values. RESULTS The A z values of MRI were higher than those of EUS (0.712 and 0.688 for MRI vs. 0.543 for EUS; p = 0.007). The diagnostic accuracies (74.5%), specificity (78.0% and 80.5%) and PPV (50.0%) of MRI in two observers were higher than those (56.4%, 58.5% and 29.2%, respectively) of EUS (p = 0.013-0.049). CONCLUSION MRI showed better diagnostic performance than EUS for differentiating malignant from benign pancreatic IPMN and MCN. KEY POINTS • The A z values of MRI were higher than those of EUS. • The diagnostic accuracies of MRI were higher than those of EUS. • The specificities of MRI were higher than those of EUS.
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Validation of the 2012 Fukuoka Consensus Guideline for Intraductal Papillary Mucinous Neoplasm of the Pancreas From a Single Institution Experience. Pancreas 2017; 46:936-942. [PMID: 28697135 DOI: 10.1097/mpa.0000000000000874] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVES The 2012 Fukuoka consensus guideline has stratified the risks of malignant intraductal papillary mucinous neoplasm (IPMN) of the pancreas into "high-risk stigmata" (HRS) and "worrisome feature" (WF). This study aimed to evaluate its clinical validity based on a single institution experience. METHODS Eighty-nine patients who underwent surgical resection with pathological diagnosis of IPMN were retrospectively studied. RESULTS High-risk stigmata was significantly correlated with the prevalence of malignant IPMN as compared with WF. The positive predictive values of HRS and WF were 66.7% and 35.7% for branch duct IPMN and 80% and 38.1% for main duct IPMN, respectively. Univariate analysis indicated that all the factors in HRS and WF had statistical significance. Whereas multivariate analysis revealed only enhanced solid component (odds ratio [OR], 50.01; P = 0.008), presence of mural nodule (OR, 73.83; P < 0.001) and lymphadenopathy (OR, 20.85; P = 0.03) were independent predictors. Scoring HRS and WF by different numbers of positive factors resulted in improved predictive value. The area under the curve of HRS score was significantly lower than that of WF or HRS + WF score (0.680 vs 0.900 or 0.902, respectively; P < 0.001). CONCLUSIONS As supplementary to the 2012 Fukuoka guideline, we suggest that calculating scores of WF and HRS may have superior diagnostic accuracy in predicting malignant IPMN.
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Woo YS, Lee KT. Clinical Approach to Incidental Pancreatic Cystic Neoplasm in Outpatient Clinics. THE KOREAN JOURNAL OF GASTROENTEROLOGY 2017; 70:13-20. [PMID: 28728311 DOI: 10.4166/kjg.2017.70.1.13] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cystic lesions of the pancreas are increasingly observed due to increased use of abdominal images. The malignant rate of pancreas cystic lesion varies widely between various types. Identification of malignant or high-risk lesions is important when determining the appropriate course of management. Using these image findings, including cyst size, presence of solid components, and pancreatic duct involvement, the 2012 International Association of Pancreatology (IAP) and the 2015 American Gastroenterological Association (AGA) guidelines provide a rationale in identifying higher risk patients requiring further workups using an endoscopic ultrasound (EUS). EUS with fine needle aspiration and cytology allows confirmation of the cyst type and determines the risk of malignancy. Small cysts with no suspicious features may undergo the regular imaging study for regular surveillance due to low risk for malignancy. In this review, the differences between the 2012 IAP and 2015 AGA guidelines are presented, In addition to possible recommendations for management and surveillance.
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Affiliation(s)
- Young Sik Woo
- Department of Internal Medicine, Hallym University College of Medicine, Chuncheon, Korea
| | - Kyu Taek Lee
- Department of Internal Medicine, Sungkyunkwan University School of Medicine, Seoul, Korea
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Moutinho-Ribeiro P, Coelho R, Giovannini M, Macedo G. Pancreatic cancer screening: Still a delusion? Pancreatology 2017; 17:754-765. [PMID: 28739291 DOI: 10.1016/j.pan.2017.07.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 06/17/2017] [Accepted: 07/05/2017] [Indexed: 12/11/2022]
Abstract
Pancreatic adenocarcinoma represents the fourth most common cause of cancer mortality and death due to pancreatic cancer (PC) have increased since 2003. Its incidence has also raised about 30% in the past decade and it is expected to become the second cause of cancer mortality by 2020 in the USA. Most PC present with metastatic disease and improvements in treatment outcomes for this group have been disappointing. These observations support the idea that screening to identify patients at an earlier stage might be an important strategy in improving overall PC outcomes. Many protocols have been tested, nevertheless, by now there is no effective screening program. Given the overall low incidence of disease and the current lack of accurate, inexpensive and noninvasive screening tests, the consensus is that widespread population-based screening for PC in the general population or in patients with only one affected first-degree relative is neither practicable nor indicated in most countries. However, a different scenario is screening patients with higher risk for PC, most of them with hereditary conditions predisposing the development of this neoplasia. In fact, some guidelines are now available helping to select these individuals at risk and to screen them, in order to achieve early detection of PC.
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Affiliation(s)
- Pedro Moutinho-Ribeiro
- Department of Gastroenterology, Centro Hospitalar São João, Porto, Portugal; Faculty of Medicine, University of Porto, Portugal.
| | - Rosa Coelho
- Department of Gastroenterology, Centro Hospitalar São João, Porto, Portugal
| | - Marc Giovannini
- Endoscopic Unit, Paoli-Calmettes Institute, Marseilles, France
| | - Guilherme Macedo
- Department of Gastroenterology, Centro Hospitalar São João, Porto, Portugal; Faculty of Medicine, University of Porto, Portugal
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Tanaka M, Fernández-Del Castillo C, Kamisawa T, Jang JY, Levy P, Ohtsuka T, Salvia R, Shimizu Y, Tada M, Wolfgang CL. Revisions of international consensus Fukuoka guidelines for the management of IPMN of the pancreas. Pancreatology 2017; 17:738-753. [PMID: 28735806 DOI: 10.1016/j.pan.2017.07.007] [Citation(s) in RCA: 1002] [Impact Index Per Article: 143.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Revised: 07/12/2017] [Accepted: 07/12/2017] [Indexed: 02/06/2023]
Abstract
The management of intraductal papillary mucinous neoplasm (IPMN) continues to evolve. In particular, the indications for resection of branch duct IPMN have changed from early resection to more deliberate observation as proposed by the international consensus guidelines of 2006 and 2012. Another guideline proposed by the American Gastroenterological Association in 2015 restricted indications for surgery more stringently and recommended physicians to stop surveillance if no significant change had occurred in a pancreatic cyst after five years of surveillance, or if a patient underwent resection and a non-malignant IPMN was found. Whether or not it is safe to do so, as well as the method and interval of surveillance, has generated substantial debate. Based on a consensus symposium held during the meeting of the International Association of Pancreatology in Sendai, Japan, in 2016, the working group has revised the guidelines regarding prediction of invasive carcinoma and high-grade dysplasia, surveillance, and postoperative follow-up of IPMN. As the working group did not recognize the need for major revisions of the guidelines, we made only minor revisions and added most recent articles where appropriate. The present guidelines include updated information and recommendations based on our current understanding, and highlight issues that remain controversial or where further research is required.
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Affiliation(s)
- Masao Tanaka
- Department of Surgery, Shimonoseki City Hospital, Shimonoseki, Japan.
| | | | - Terumi Kamisawa
- Department of Gastroenterology, Komagome Metropolitan Hospital, Tokyo, Japan
| | - Jin Young Jang
- Division of Hepatobiliary-Pancreatic Surgery, Department of Surgery, Seoul National University College of Medicine, Seoul, South Korea
| | - Philippe Levy
- Pôle des Maladies de l'Appareil Digestif, Service de Gastroentérologie-Pancréatologie, Hopital Beaujon, Clichy Cedex, France
| | - Takao Ohtsuka
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Roberto Salvia
- Department of General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Verona, Italy
| | - Yasuhiro Shimizu
- Dept. of Gastroenterological Surgery, Aichi Cancer Center, Nagoya, Japan
| | - Minoru Tada
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Christopher L Wolfgang
- Cameron Division of Surgical Oncology and The Sol Goldman Pancreatic Cancer Research Center, Department of Surgery, Johns Hopkins University, Baltimore, MD, USA
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Abstract
The management of pancreatic cysts is a common problem faced by physicians and surgeons. Pancreatic cysts are important because some of them are mucin-producing cysts (MPCs), which may harbor or develop pancreatic ductal adenocarcinoma. Thus, accurate classification of pancreatic cysts and diagnosis of MPCs offer a potential for the prevention or early detection of pancreatic cancer. However, the diagnosis and management of asymptomatic pancreatic cysts are complicated by 2 factors. First, incidentally detected pancreatic cysts are often misdiagnosed as branch duct intraductal papillary mucinous neoplasms. Although most are MPCs, there are other types of cysts, such as serous cystadenomas, which are managed differently. Second, only a minority of MPCs will ultimately develop into invasive pancreatic ductal adenocarcinoma. Thus, on the one hand, pancreatic cysts offer a unique opportunity to identify precursors to pancreatic cancer and improve outcomes. On the other hand, misdiagnosis and overzealous testing or unnecessary surgery may lead to high cost and harm to patients. Several guidelines have been developed by various groups for the management of pancreatic cysts. In this article, we review the strengths and weaknesses of the American Gastroenterology Association guidelines, highlight key recommendations requiring further validation, and provide our balanced approach to diagnosing and managing pancreatic cysts.
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Abstract
Pancreatic cysts, especially incidental asymptomatic ones seen on noninvasive imaging such as CT or MR imaging, remain a clinical challenge. The etiology of such cysts may range from benign cysts without any malignant potential such as pancreatic pseudocysts and serous cystadenomas to premalignant or frankly malignant cysts such as mucinous cystic neoplasms, intraductal papillary mucinous neoplasms, cystic degeneration associated with solid tumors such as pancreatic ductal adenocarcinoma or pancreatic endocrine neoplasms, and solid pseudopapillary neoplasms. The clinical challenge in 2017 is to accurately preoperatively diagnose them and their malignant potential before deciding about surgery, surveillance or doing nothing. This review will focus on the currently available clinical guidelines for doing so.
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Affiliation(s)
- James J Farrell
- Yale Center for Pancreatic Diseases, Interventional Endoscopy, Yale School of Medicine, New Haven, CT, USA. .,Section of Digestive Diseases, Yale University School of Medicine, LMP 1080, 15 York Street, New Haven, CT, 06510-3221, USA.
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Abstract
Pancreatic cysts are commonly found on cross-sectional imaging. The question arises in determining which lesions are premalignant or malignant and may require further testing, intervention, or follow-up. In pancreatic cysts without obvious malignancy on imaging, we approach them using the Four "S" Criteria. These are (1) symptoms that may be originating from the pancreatic cyst; (2) size of the cyst 2 cm or larger and/or main pancreatic duct greater than 5 mm; (3) survival of the patient, based on comorbidity index to determine surgical fitness; and then endoscopic ultrasound with fine needle aspiration (FNA) recommended to determine (4) solid component presence in the cyst, namely, nodule or thick walls, as well as to perform FNA to obtain cyst content. Current cyst fluid analysis options include use of cytology to determine presence of malignancy and carcinoembryonic antigen and fluid genetics to identify potentially premalignant lesions. The aims of this article are to explore current management guidelines for pancreatic cysts, present a comprehensive approach to pancreatic cysts, and explain the advantages and disadvantages of each option for evaluation of pancreatic cysts including endoscopic ultrasound with FNA with cyst fluid analysis using an evidence-based approach.
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48
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Choi SY, Kim JH, Yu MH, Eun HW, Lee HK, Han JK. Diagnostic performance and imaging features for predicting the malignant potential of intraductal papillary mucinous neoplasm of the pancreas: a comparison of EUS, contrast-enhanced CT and MRI. Abdom Radiol (NY) 2017; 42:1449-1458. [PMID: 28144718 DOI: 10.1007/s00261-017-1053-3] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE To compare diagnostic performance for prediction of malignant potential in IPMNs between EUS, contrast-enhanced CT and MRI. MATERIALS AND METHODS 76 patients with IPMN (benign = 37, malignant = 39) underwent EUS, contrast-enhanced CT, and MRI. EUS was analyzed based on formal reports and contrast-enhanced CT and MRI were retrospectively analyzed by two radiologists according to the consensus guidelines 2012. Diagnostic performance and imaging features of malignant IPMNs were analyzed using ROC analysis and multivariate analyses. RESULTS Diagnostic performance of contrast-enhanced CT (AUC = 0.792 in R1, 0.830 in R2), MRI (AUC = 0.742 in R1, 0.776 in R2), and EUS (AUC = 0.733) for predicting malignant IPMNs were comparable without significant difference (p > 0.05). In multivariable analysis, enhancing solid component in contrast-enhanced CT and MRI and mural nodule in EUS (OR 1.8 in CT, 1.36 in MRI, 1.47 in EUS), MPD diameter ≥ 10 mm (OR 1.3 in CT, 1.4 in MRI, 1.66 in EUS), MPD diameter of 5-9 mm (OR 1.23 in CT, 1.31 in MRI), and thickened septa or wall (OR 1.3 in CT and MRI) were significant variables (p < 0.05). Interobserver agreement of thickened cyst septa or wall (k = 0.579-0.617) and abrupt caliber change of MPD (k = 0.689-0.788) was lower than other variables (k > 0.80). CONCLUSION Diagnostic performance of contrast-enhanced CT, MRI, and EUS for predicting malignant IPMNs was comparable with each modalities without significant difference.
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Affiliation(s)
- Seo-Youn Choi
- Department of Radiology, Soonchunhyang University Bucheon Hospital, 170 Jomaru-ro, Wonmi-gu, Bucheon, 420-767, Republic of Korea
| | - Jung Hoon Kim
- Department of Radiology and Institute of Radiation Medicine, Seoul National University College of Medicine, 101 Daehang-no, Chongno-gu, Seoul, 110-744, Republic of Korea.
| | - Mi Hye Yu
- Department of Radiology, Konkuk University Hospital, Konkuk University School of Medicine, Seoul, Republic of Korea
| | - Hyo Won Eun
- Department of Radiology, Samsung Medical Center, 50 Ilwon-Dong, Kangnam-Ku, Seoul, 135-710, Republic of Korea
| | - Hae Kyung Lee
- Department of Radiology, Soonchunhyang University Bucheon Hospital, 170 Jomaru-ro, Wonmi-gu, Bucheon, 420-767, Republic of Korea
| | - Joon Koo Han
- Department of Radiology and Institute of Radiation Medicine, Seoul National University College of Medicine, 101 Daehang-no, Chongno-gu, Seoul, 110-744, Republic of Korea
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Kirtane T, Bhutani MS. Recent developments in endoscopic ultrasound-guided diagnosis and therapy of pancreatic cystic neoplasms. INTERNATIONAL JOURNAL OF GASTROINTESTINAL INTERVENTION 2017. [DOI: 10.18528/gii170006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Tejas Kirtane
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Manoop S. Bhutani
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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Sighinolfi M, Quan SY, Lee Y, Ibaseta A, Pham K, Dua MM, Poultsides GA, Visser BC, Norton JA, Park WG. Fukuoka and AGA Criteria Have Superior Diagnostic Accuracy for Advanced Cystic Neoplasms than Sendai Criteria. Dig Dis Sci 2017; 62:626-632. [PMID: 28116593 DOI: 10.1007/s10620-017-4460-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 01/12/2017] [Indexed: 12/18/2022]
Abstract
BACKGROUND The aim of this study was to compare the American Gastroenterological Association guidelines (AGA criteria), the 2012 (Fukuoka criteria), and 2006 (Sendai criteria) International Consensus Guidelines for the diagnosis of advanced pancreatic cystic neoplasms. METHODS All patients who underwent surgical resection of a pancreatic cyst from August 2007 through January 2016 were retrospectively analyzed at a single tertiary academic center. Relevant clinical and imaging variables along with pathology results were collected to determine appropriate classification for each guideline. Advanced pancreatic cystic neoplasms were defined by the presence of either high-grade dysplasia or cystic adenocarcinoma. Diagnostic accuracy was measured by ROC analysis. RESULTS A total of 209 patients were included. Both the AGA and Fukuoka criteria had a higher diagnostic accuracy for advanced neoplastic cysts than the Sendai criteria: AGA ROC 0.76 (95% CI 0.69-0.81), Fukuoka ROC 0.78 (95% CI 0.74-0.82), and Sendai ROC 0.65 (95% CI 0.61-0.69) (p < 0.0001). There was no difference between the Fukuoka and the AGA criteria. While the sensitivity was higher in the Fukuoka criteria compared to the AGA criteria (97.7 vs. 88.6%), the specificity was higher in the AGA criteria compared to the Fukuoka criteria (62.4 vs. 58.2%). CONCLUSIONS In a surgical series of patients with pancreatic cysts, the AGA and Fukuoka criteria had superior diagnostic accuracy for advanced neoplastic cysts compared to the original Sendai criteria.
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Affiliation(s)
- Michael Sighinolfi
- Department of Medicine, Santa Clara Valley Medical Center, San Jose, CA, USA
| | - Susan Y Quan
- Division of Gastroenterology and Hepatology, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Yvonne Lee
- Division of Gastroenterology and Hepatology, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Alvaro Ibaseta
- Division of Gastroenterology and Hepatology, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Kimberly Pham
- Division of Gastroenterology and Hepatology, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Monica M Dua
- Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - George A Poultsides
- Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Brendan C Visser
- Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Jeffery A Norton
- Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Walter G Park
- Division of Gastroenterology and Hepatology, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA. .,Pancreas Clinic, Stanford University School of Medicine, 300 Pasteur Drive, MC: 5187, Stanford, CA, 94305, USA.
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