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Lee J, Song SH, Lee IH, Kim DJ, Lee HJ. Primary Solid Pseudopapillary Tumor of the Ovary: A Case Report and Review of the Literature. J Clin Med 2024; 13:2791. [PMID: 38792331 PMCID: PMC11121763 DOI: 10.3390/jcm13102791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 05/07/2024] [Accepted: 05/08/2024] [Indexed: 05/26/2024] Open
Abstract
INTRODUCTION Solid pseudopapillary neoplasms (SPNs) are rare and mainly originate from the pancreas. SPNs originating from the ovary (SPN-O) are extremely rare, and only 13 cases have been reported in the English literature since 2010. CASE We report a 31-year-old woman with SPN-O accompanied by multiple metastases in the abdominal cavity. The patient underwent staging surgery and cytoreduction. Furthermore, the multidisciplinary board decided on adjuvant chemotherapy with an FP regimen (fluorouracil plus cisplatin) because a microscopic metastasis was discovered in the peritoneum near the appendix. Next-generation sequencing showed some pathologic mutations of oncogenes/cancer-associated genes, including CTNNB1 and TP53. This is the fourteenth case of SPN-O and the first one to demonstrate the TP53 pathogenic mutant variant in SPN-O. The patient showed 8 months of disease-free survival until February 2024. CONCLUSION The combination of R0 cytoreduction with FOLFIRI chemotherapy appears to be an effective and feasible treatment option.
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Affiliation(s)
- Juhun Lee
- Department of Obstetrics and Gynecology, School of Medicine, Kyungpook National University, Kyungpook Nation University Hospital, Daegu 41944, Republic of Korea;
| | - Seung Ho Song
- Department of Surgery, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu 41944, Republic of Korea;
| | - In Hee Lee
- Department of Hematology/Oncology, School of Medicine, Kyungpook National University, Kyungpook National University Chilgok Hospital, Daegu 41404, Republic of Korea;
| | - Dong Ja Kim
- Department of Forensic Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu 41404, Republic of Korea;
| | - Hyun Jung Lee
- Department of Obstetrics and Gynecology, School of Medicine, Kyungpook National University, Kyungpook Nation University Hospital, Daegu 41944, Republic of Korea;
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Liu AH, Zhao ZQ, Li XW, Xu B, Yu RF, Ye SF, Miao ZH, Huang LL, Gao BB, Lai HY, Lin JH, Ye MZ, Huang XM, Liu ZJ, Chen X. Solid pseudopapillary neoplasm: Report of a case of primary ovarian origin and review of the literature. Heliyon 2023; 9:e19318. [PMID: 37664705 PMCID: PMC10469959 DOI: 10.1016/j.heliyon.2023.e19318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 08/14/2023] [Accepted: 08/18/2023] [Indexed: 09/05/2023] Open
Abstract
Background Solid pseudopapillary neoplasms (SPNs) are uncommon tumors of low malignancy with a generally favorable prognosis, mostly originating from the pancreas. To date, 12 cases of SPNs with a primary ovarian origin (SPN-Os) have been reported globally, and their detailed characteristics have not been fully elucidated. Case description We reported the 13th SPN-O case, which occurred in a 52-year-old woman with an 18.5 cm left ovarian mass. Four imaging methods, including ultrasound, computed tomography, magnetic resonance imaging and positron emission tomography, were utilized before surgery. An elevated level of serum cancer antigen 125 was detected and a total hysterectomy plus bilateral salpingo-oophorectomy was performed. Microscopic examination revealed a typical solid pseudopapillary structure. The tumor cells were stained focally for pan-cytokeratin, synaptophysin, CD99 and CD10, while β-catenin, vimentin and CD56 were diffusely expressed. The Ki-67 proliferation index was 3%, and immunohistochemical (IHC) staining for chromogranin-A, inhibin-a, and E-cadherin was negative. No evidence of recurrence or metastasis was observed by clinical and imaging data during a 5-month postoperative follow-up. Conclusion This is a report of an unusual case of a primary ovarian SPN with an up-to-date review of SPN-Os. A minimum combination of imaging methods and IHC stains was proposed for SPN-Os, which may prove beneficial in clinical practice.
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Affiliation(s)
- An-Hao Liu
- Department of Obstetrics and Gynecology, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Zi-Qing Zhao
- Department of Pathology, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Xiu-Wen Li
- Department of Obstetrics and Gynecology, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Bin Xu
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, China
| | - Run-Fang Yu
- Department of Obstetrics and Gynecology, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Shao-Fen Ye
- Department of Obstetrics and Gynecology, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Zhi-Hui Miao
- Department of Obstetrics and Gynecology, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Li-Li Huang
- Department of Obstetrics and Gynecology, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Bin-Bin Gao
- Department of Obstetrics and Gynecology, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Hai-Yan Lai
- Department of Obstetrics and Gynecology, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Jia-Hui Lin
- Department of Radiology, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Ming-Zhu Ye
- Department of Obstetrics and Gynecology, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Xiu-Min Huang
- Department of Obstetrics and Gynecology, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Zheng-Jin Liu
- Department of Pathology, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Xun Chen
- Department of Obstetrics and Gynecology, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
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Ordulu Z. Update on Ovarian Sex Cord-Stromal Tumors. Clin Lab Med 2023; 43:245-274. [PMID: 37169445 DOI: 10.1016/j.cll.2023.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
This article focuses on the recent advances in ovarian sex cord-stromal tumors, predominantly in the setting of their molecular underpinnings. The integration of genetic information with morphologic and immunohistochemical findings in this rare subset of tumors is of clinical significance from refining the diagnostic and prognostic stratifications to genetic counseling.
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Affiliation(s)
- Zehra Ordulu
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, 1345 Center Drive, Box 100275, Gainesville, FL 32610, USA.
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4
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Liu H, Xu Z, Wang Y, Gu H, Tang Y, Wu D, Wang J, Zhang J. Case report: A case report and literature review of extrapancreatic solid pseudopapillary neoplasm. Front Surg 2022; 9:1020044. [PMID: 36406380 PMCID: PMC9672344 DOI: 10.3389/fsurg.2022.1020044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 10/03/2022] [Indexed: 11/06/2022] Open
Abstract
Background Solid pseudopapillary neoplasm (SPN) is a rare tumor with low malignant potential, which typically occurs in the pancreas. Extrapancreatic SPN is also extremely rare worldwide. Case presentation We report a case of a 70-year-old woman hospitalized with abdominal pain and bloating. The patient did not have any underlying diseases, such as diabetes, coronary heart disease, or hypertension. More than 30 years ago, the patient underwent surgery for “ectopic pregnancy”. The patient had no family history of hereditary disease, nor did any immediate family members have a history of cancer. Laboratory tests showed that her hemoglobin and albumin levels were low and she had a high level of cancer antigen 125 (CA125). Enhanced computed tomography (CT) showed a large tumor in the abdomen and pelvis. The patient subsequently underwent surgery, and it was found that the tumor was attached to the terminal ileum. Pathological findings suggested that the tumor was an extrapancreatic SPN, with an ectopic pancreas found in the tumor tissue. The patient did not receive chemotherapy or radiotherapy after surgery. After 13 months of follow-up, the patient was admitted again with abdominal pain. CT showed tumor recurrence with extensive systemic metastases. The patient and her family refused reoperation and biopsy, and the patient was discharged after the abdominal pain and anemia resolved. Conclusion We report a rare case of extrapancreatic SPN of ileal origin, which could be the first report worldwide. It had aggressive biological features, with recurrence and metastasis 13 months after surgery. For extrapancreatic SPN, the risk of recurrence should be assessed, and for tumors suspected of malignant behavior, a longer follow-up after discharge may be needed. Although SPN generally has a good prognosis after surgery, there is no consensus on whether postoperative chemotherapy and other treatments are needed for patients with high recurrence risk.
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5
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Update on Ovarian Sex Cord-Stromal Tumors. Surg Pathol Clin 2022; 15:235-258. [PMID: 35715160 DOI: 10.1016/j.path.2022.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
This article focuses on the recent advances in ovarian sex cord-stromal tumors, predominantly in the setting of their molecular underpinnings. The integration of genetic information with morphologic and immunohistochemical findings in this rare subset of tumors is of clinical significance from refining the diagnostic and prognostic stratifications to genetic counseling.
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Cruz MAA, Moutinho-Ribeiro P, Costa-Moreira P, Macedo G. Solid Pseudopapillary Neoplasm of the Pancreas: Unfolding an Intriguing Condition. GE PORTUGUESE JOURNAL OF GASTROENTEROLOGY 2022; 29:151-162. [PMID: 35702168 PMCID: PMC9149554 DOI: 10.1159/000519933] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 09/28/2021] [Indexed: 08/10/2023]
Abstract
Pancreatic cancer is one of the most lethal malignant neoplasms, with a 1-year survival rate after diagnosis of 24%, and a 5-year survival rate of only 9%. While this illustrates the behavior of its main histologic type - ductal adenocarcinoma, there are other histologic subtypes of pancreatic cancer that can harbor excellent prognosis. Solid pseudopapillary neoplasm, described as a rare low-grade malignant neoplasm by the World Health Organization, is the best example of that, having an overall 5-year survival rate of about 97%. Not only the prognosis, but everything about this entity is unique: its histogenesis, epidemiology, presentation, imaging characteristics, cytology features, immunohistochemical profile, and treatment. This explains the urge to improve our understanding about this entity and thus our ability to accurately recognize and manage it. Having this in mind, this article aims to summarize the most relevant topics regarding this entity.
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Affiliation(s)
| | - Pedro Moutinho-Ribeiro
- Faculty of Medicine, University of Porto, Porto, Portugal
- Gastroenterology Department, Centro Hospitalar e Universitário São João, Porto, Portugal
| | - Pedro Costa-Moreira
- Faculty of Medicine, University of Porto, Porto, Portugal
- Gastroenterology Department, Centro Hospitalar e Universitário São João, Porto, Portugal
| | - Guilherme Macedo
- Faculty of Medicine, University of Porto, Porto, Portugal
- Gastroenterology Department, Centro Hospitalar e Universitário São João, Porto, Portugal
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7
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Parra-Herran C, McCluggage WG. Ovarian microcystic stromal tumour: From morphological observations to syndromic associations. Histopathology 2022; 80:898-904. [PMID: 35020947 DOI: 10.1111/his.14616] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/15/2021] [Accepted: 01/10/2022] [Indexed: 11/30/2022]
Abstract
Microcystic stromal tumour (MST) is a rare, usually benign, ovarian neoplasm characterised morphologically in its classic form by a distinctive triad of features comprising microcysts, solid cellular regions and fibrous stroma. Variant morphology also occurs, including the presence of nests, tubules, cords, and signet ring cells. Immunohistochemically, this neoplasm is characterised by diffuse nuclear expression of β-catenin, cyclin D1, WT1 and SF1, as well as diffuse staining with FOXL2 and CD10. Inhibin and calretinin are typically negative. At the genomic level, these neoplasms harbour mutually exclusive mutations in CTNNB1 or APC genes with the former being significantly more common. This molecular characteristic raises possible links to other rare ovarian lesions including solid pseudopapillary tumour, signet-ring stromal tumour and Sertoli cell tumour. Rarely, MST is an extracolonic manifestation of familial adenomatous polyposis (FAP) and serves as a sentinel event that could trigger the identification of the syndrome. Herein, we review the published literature on ovarian MST and provide practical advice for pathologists reporting these rare neoplasms.
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Affiliation(s)
- Carlos Parra-Herran
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - W Glenn McCluggage
- Department of Pathology, Belfast Health and Social Care Trust, Belfast, Northern Ireland, United Kingdom
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Kushner BS, Chatterjee D, Hammill C. Rare aggressive solid pseudopapillary neoplasm of the ovary with metastatic disease following surgical resection. BMJ Case Rep 2020; 13:13/12/e238136. [PMID: 33298496 DOI: 10.1136/bcr-2020-238136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Extra-pancreatic solid pseudopapillary neoplasms (SPNs) are rare tumours with an overall favourable prognosis and low malignant potential. SPNs with metastatic spread, distant lymph node metastasis and extrapancreatic origin are exceedingly rare. Significant controversy regarding the treatment and the management of metastatic disease exists and, currently, there are no standardised guidelines or treatment recommendations for the use of adjuvant therapy. In this case report, the authors present a patient with widely metastatic SPN of likely ovarian origin with the invasion of the inguinal lymph nodes and multiple abdominal metastatic deposits. Using the currently available literature, the authors discuss treatment options for metastatic SPN of the ovary and highlight the need for continued research in this important field.
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Affiliation(s)
- Bradley S Kushner
- Department of Surgery, Washington University in Saint Louis School of Medicine, Saint Louis, Missouri, USA
| | - Deyali Chatterjee
- Department of Pathology, Washington University in Saint Louis School of Medicine, Saint Louis, Missouri, USA
| | - Chet Hammill
- Department of Surgery, Washington University in Saint Louis School of Medicine, Saint Louis, Missouri, USA
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9
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Lemoine A, Asmandar S, Boutroux H, Tounian P, Ducou Le Pointe H, Coulomb A, Irtan S. Extrapancreatic primary solid pseudopapillary tumor in the gastric antrum: Case report. Pediatr Blood Cancer 2020; 67:e28415. [PMID: 32779872 DOI: 10.1002/pbc.28415] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 04/28/2020] [Accepted: 04/29/2020] [Indexed: 01/01/2023]
Affiliation(s)
- Anaïs Lemoine
- Department of Pediatric Nutrition and Gastroenterology, Trousseau Hospital, APHP, Sorbonne University, Paris, France
| | - Safaa Asmandar
- Department of Pathological Anatomy and Cytology, Trousseau Hospital, APHP, Sorbonne University, Paris, France
| | - Hélène Boutroux
- Department of Pediatric Hematology and Oncology, APHP, Trousseau Hospital, Paris, France
| | - Patrick Tounian
- Department of Pediatric Nutrition and Gastroenterology, Trousseau Hospital, APHP, Sorbonne University, Paris, France
| | - Hubert Ducou Le Pointe
- Department of Pediatric Imaging, APHP, Sorbonne University, Trousseau Hospital, Paris, France
| | - Aurore Coulomb
- Department of Pathological Anatomy and Cytology, Trousseau Hospital, APHP, Sorbonne University, Paris, France
| | - Sabine Irtan
- Department of Visceral and Neonatal Pediatric Surgery, APHP, Sorbonne University, Trousseau Hospital, Paris, France
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10
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Signet ring cell-rich microcystic stromal tumor of the ovary: A poorly recognized variant. HUMAN PATHOLOGY: CASE REPORTS 2020. [DOI: 10.1016/j.ehpc.2020.200451] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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11
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Ovarian Solid Pseudopapillary Tumor Resembling Benign Hemorrhagic Cyst on Rapid Frozen Section. Case Rep Obstet Gynecol 2020; 2020:6473630. [PMID: 32566338 PMCID: PMC7285408 DOI: 10.1155/2020/6473630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 05/10/2020] [Accepted: 05/22/2020] [Indexed: 11/18/2022] Open
Abstract
Solid pseudopapillary tumors are rare, with the majority of described cases originating in the pancreas. To date, there are only 10 documented reports of primary ovarian solid pseudopapillary tumors. Here, we describe the case of a 24-year-old woman who presented with worsening pelvic pain and dysmenorrhea. Workup demonstrated a right ovarian solid mass on ultrasound and an elevated serum LDH, which raised concerns for dysgerminoma due to her relatively young age. Therefore, she was taken to the operating room and underwent laparoscopic right salpingo-oophorectomy. On initial rapid frozen section, her ovarian cyst had a grossly hemorrhagic appearance with multiple hemosiderin deposits noted microscopically, which suggested a benign hemorrhagic cyst. However, the final pathology was reported as solid pseudopapillary tumor based on several defining histologic characteristics. Most importantly, immunostaining was positive for β-catenin and negative for E-cadherin. This report presents a brief review of the current literature on primary ovarian solid pseudopapillary tumors, including a discussion of expected prognosis after surgical resection, as well as a discussion of the role of immunohistochemistry (IHC) in differentiating ovarian neoplasms in young premenopausal women.
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Targeted Genomic Profiling of Female Adnexal Tumors of Probable Wolffian Origin (FATWO). Int J Gynecol Pathol 2020; 38:543-551. [PMID: 30134342 DOI: 10.1097/pgp.0000000000000545] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Female adnexal tumor of probable Wolffian origin (FATWO) is a rare gynecologic neoplasm of low-malignant potential presumed to be derived from mesonephric remnants in the upper female genital tract. Similarly, mesonephric remnants in the lower female genital tract are thought to be the origin for mesonephric carcinoma. Although the molecular alterations in mesonephric carcinoma have been recently reported, the pathogenesis of and molecular alterations in FATWO are not well understood. The aims of this study were to examine the molecular alterations in FATWO and to establish whether these neoplasms are molecularly similar to mesonephric carcinoma. Eight FATWOs underwent massively parallel sequencing to detect single nucleotide variations, copy number variations, and structural variants by surveying exonic DNA sequences of 300 cancer genes and 113 introns across 35 genes. Good quality DNA was isolated from 7 of 8 cases. Novel KMT2D variants (1 frameshift, 3 missense) were identified in 4 of 7 cases (57%), but were variants of uncertain biologic significance. STK11 mutations (both frameshift) were identified in 2 of 7 cases (29%); one of these was in a patient with a known history of Peutz-Jeghers syndrome. A mutation in the chromatin remodeling gene ARID1B was identified in 1 of 7 cases (14%). No cases harbored KRAS, NRAS, TP53, PIK3CA, PTEN, or DICER1 mutations. There were relatively low numbers of copy number variations, and no recurrent copy number variations were identified. One case demonstrated moderate copy gain of CCND1. No structural variants were identified. In summary, FATWO is characterized molecularly by the absence of KRAS/NRAS mutations (characteristic of mesonephric carcinoma), absence of DICER1 mutations (characteristic of Sertoli-Leydig cell tumor) and frequent KMT2D mutations of unknown biologic significance. FATWOs exhibit a limited number of molecular aberrations that are significantly different from those reported in tumors in the differential diagnosis, and our results question the relationship of mesonephric carcinoma with FATWO. Disease-defining molecular alterations for FATWO have yet to be discovered.
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13
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McCluggage WG, Chong AS, Attygalle AD, Clarke BA, Chapman W, Rivera B, Foulkes WD. Expanding the morphological spectrum of ovarian microcystic stromal tumour. Histopathology 2018; 74:443-451. [DOI: 10.1111/his.13755] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 09/13/2018] [Accepted: 09/13/2018] [Indexed: 12/30/2022]
Affiliation(s)
- W Glenn McCluggage
- Department of Pathology; Belfast Health and Social Care Trust; Belfast UK
| | - Anne-Sophie Chong
- Cancer Research Program, Research Institute; McGill University Health Centre; Montreal QC Canada
| | | | - Blaise A Clarke
- Department of Laboratory Medicine and Pathobiology; University of Toronto; University Health Network; Toronto ON Canada
| | - William Chapman
- Department of Laboratory Medicine and Pathobiology; University of Toronto; University Health Network; Toronto ON Canada
| | - Barbara Rivera
- Lady Davis Institute; Jewish General Hospital; Montreal QC Canada
- Gerald Bronfman Department of Oncology; McGill University; Montreal QC Canada
| | - William D Foulkes
- Cancer Research Program, Research Institute; McGill University Health Centre; Montreal QC Canada
- Lady Davis Institute; Jewish General Hospital; Montreal QC Canada
- Gerald Bronfman Department of Oncology; McGill University; Montreal QC Canada
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14
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Michalova K, Michal M, Sedivcova M, Kazakov DV, Bacchi C, Antic T, Miesbauerova M, Hes O, Michal M. Solid pseudopapillary neoplasm (SPN) of the testis: Comprehensive mutational analysis of 6 testicular and 8 pancreatic SPNs. Ann Diagn Pathol 2018; 35:42-47. [PMID: 29705715 DOI: 10.1016/j.anndiagpath.2018.04.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 04/17/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Recently, we came with the theory of a possible relationship between a group of testicular and pancreatic tumors. We used one case of a pancreatic analogue solid pseudopapillary neoplasm of the testis composed partially of areas reminiscent of solid pseudopapillary neoplasm (SPN) of the pancreas and partially of structures identical to primary signet ring stromal tumor of the testis (PSRSTT) as a connecting link between these two entities. After demonstrating that PSRSTT and pancreatic analogue SPN of the testis share the same immunoprofile and genetic features characteristic for pancreatic SPN, we came to the conclusion that pancreatic analogue SPN of the testis and PSRSTT represent a morphological spectrum of a single entity and that both are related to the pancreatic SPN. DESIGN The aim of this study is to present a series of 6 cases of testicular tumors, which lacked the signet ring cell component and were thus morphologically very similar to the SPN of the pancreas. The goal of this study is to compare the genetic background of these testicular tumors that are obviously related to the PSRSTT/pancreatic analogue SPN of the testis with the series of 8 pancreatic SPN. RESULTS The mutational analysis revealed an oncogenic somatic mutation in the exon 3 of the CTNNB1 (β-catenin) gene in all analyzable (5/6) testicular and all pancreatic (8/8) tumors. The immunoprofile (positivity with β-catenin, CD10, vimentin, NSE, CD56, and negativity with inhibin, calretinin, chromogranin) was identical in all testicular and pancreatic tumors. CONCLUSION This study expanded the morphological spectrum of the PSRSTT/pancreatic analogue SPN of the testis by adding 6 cases without the signet ring cell component. Considering the obvious analogy of PSRSTT/pancreatic analogue SPN of the testis/SPN of the testis and their relationship to the pancreatic SPN we propose the collective term "solid pseudopapillary neoplasm of the testis" for these tumors. The mutational profile of the SPN of the testis and pancreas was the same in both groups of tumors which we consider as a final proof that SPN of the testis is identical to the SPN of the pancreas.
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Affiliation(s)
- Kvetoslava Michalova
- Department of Pathology, Faculty of Medicine in Pilsen, Charles University, 323 00 Pilsen, Czech Republic.
| | - Michael Michal
- Department of Pathology, Faculty of Medicine in Pilsen, Charles University, 323 00 Pilsen, Czech Republic; Biomedical Center, Faculty of Medicine in Pilsen, Charles University, 323 00 Pilsen, Czech Republic
| | | | - Dmitry V Kazakov
- Department of Pathology, Faculty of Medicine in Pilsen, Charles University, 323 00 Pilsen, Czech Republic
| | | | - Tatjana Antic
- Department of Pathology, The University of Chicago, Chicago, USA
| | - Marketa Miesbauerova
- Department of Pathology, Faculty of Medicine in Pilsen, Charles University, 323 00 Pilsen, Czech Republic
| | - Ondrej Hes
- Department of Pathology, Faculty of Medicine in Pilsen, Charles University, 323 00 Pilsen, Czech Republic
| | - Michal Michal
- Department of Pathology, Faculty of Medicine in Pilsen, Charles University, 323 00 Pilsen, Czech Republic
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15
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Solid pseudopapillary neoplasm presenting as a primary ovarian mass in an eighteen-year-old female: report of a case and review of the literature. Virchows Arch 2017; 472:285-291. [DOI: 10.1007/s00428-017-2231-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 08/28/2017] [Accepted: 08/31/2017] [Indexed: 12/26/2022]
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