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Liu Z, Bian J, Yang Y, Wei D, Qi S. Ewing sarcoma of the pancreas: a pediatric case report and narrative literature review. Front Oncol 2024; 14:1368564. [PMID: 38694785 PMCID: PMC11061524 DOI: 10.3389/fonc.2024.1368564] [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: 01/10/2024] [Accepted: 04/01/2024] [Indexed: 05/04/2024] Open
Abstract
Ewing's Sarcoma (ES) is an rare, small round-cell sarcoma that predominantly occurs in children and young adults, with both skeletal and extraskeletal manifestations. However, pancreatic ES, due to its rarity, is infrequently featured in scholarly literature, with only a scant 43 reported instances. Our study describes a case of pancreatic ES in an 8-year-old boy who was found to have an abdominal mass. Following an exhaustive examination, the boy was diagnosed with a neoplasm in the pancreatic head and underwent a complex surgical procedure encompassing pancreatoduodenectomy and partial transverse colectomy. Immunohistochemical assays confirmed the neoplastic cells' positivity for Cluster of Differentiation 99(CD99), Vimentin, and NK2 Homeobox 2(NKX2.2), while genomic testing identified an EWSR1-FLI1(Ewing Sarcoma Breakpoint Region 1-Friend Leukemia Integration 1) gene fusion. This led to a conclusive diagnosis of pancreatic Ewing's Sarcoma. The patient underwent seven cycles of adjuvant chemotherapy, alternating between VDC (Vincristine, Doxorubicin, Cyclophosphamide) and IE (Ifosfamide, Etoposide) tri-weekly, but did not undergo radiotherapy. At present, the patient remains neoplasm-free. Through our case analysis and comprehensive review of the existing literature, we aim to underscore th rarity of pancreatic Ewing's sarcoma and to highlight the efficacy of our individualized therapeutic approach.
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Affiliation(s)
| | - Jian Bian
- Department of General Surgery, Anhui Provincial Children’s Hospital, Hefei, Anhui, China
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2
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Karamitopoulou-Diamantis E. [Exocrine meets neuroendocrine: mimickers of pancreatic neuroendocrine neoplasms]. PATHOLOGIE (HEIDELBERG, GERMANY) 2024; 45:42-49. [PMID: 38091082 DOI: 10.1007/s00292-023-01286-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/07/2023] [Indexed: 01/31/2024]
Abstract
Neuroendocrine neoplasms (NENs) originate from various epithelial or neuroectodermal tissues, can occur in any organ, including the pancreas, and are characterized by the expression of the neuroendocrine markers synaptophysin and chromogranin A. Pancreatic neuroendocrine tumors (PanNETs) are well-differentiated epithelial neoplasms with morphological and immunohistochemical features of neuroendocrine differentiation of low, intermediate, or high grade. Pancreatic neuroendocrine carcinomas (PanNECs) are clinically aggressive, high-grade (poorly differentiated) carcinomas with morphologic features suggesting neuroendocrine differentiation, a high proliferative rate (> 20 mitoses per 2 mm2 and Ki67 index > 20%), and immunohistochemical labeling for neuroendocrine markers. They include the small cell neuroendocrine carcinoma and the large cell neuroendocrine carcinoma categories.Neuroendocrine-like morphology coupled with immunohistochemical markers of neuroendocrine differentiation are highly specific. However, neuroendocrine markers may also be expressed in non-neuroendocrine neoplasms, which can therefore be confused with NENs. Mimickers of pancreatic NENs comprise a number of important pitfall tumors, including epithelial and non-epithelial neoplasms, such as acinar cell carcinomas, solid pseudopapillary neoplasms (SPNs), or even non-neoplastic lesions. All of these lesions have the expression of neuroendocrine markers in common, such as synaptophysin and chromogranin A, and although they are comparatively rare, they can cause considerable diagnostic problems. This review article deals with some of the most important mimickers of pancreatic neuroendocrine neoplasms and even non-neoplastic lesions, such as islet aggregation. The similarities and differences between these entities and pancreatic neuroendocrine neoplasms are highlighted, and key findings that facilitate the correct diagnosis are discussed.
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Affiliation(s)
- Eva Karamitopoulou-Diamantis
- Institut für Gewebemedizin und Pathologie, Universität Bern, Bern, Schweiz.
- PATHOLOGIE INSTITUT ENGE, Hardturmstr. 133, 8005, Zürich, Schweiz.
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Lu T, Yang W, Liu X, Yang X, Yang C, Di W. Imaging Findings of Hepatic Ewing's Sarcoma on Computed Tomography and Gadobenate Dimeglumine-enhanced Magnetic Resonance Imaging: A Case Report and Literature Review. J Clin Transl Hepatol 2022; 10:564-569. [PMID: 35836756 PMCID: PMC9240243 DOI: 10.14218/jcth.2021.00129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 07/02/2021] [Accepted: 07/22/2021] [Indexed: 12/04/2022] Open
Abstract
Ewing's sarcoma (ES) is a tumor that often occurs in the long bones and rarely arises from visceral organs primarily. Here, we report a case of primary hepatic ES, discuss its computed tomography (CT) and gadobenate dimeglumine-enhanced magnetic resonance (MRI) features. This is the first Chinese and fifth primary hepatic ES case reported, based on a literature review. Imaging examinations showed that the tumor was solid, with necrosis and hemorrhage. Contrast-enhanced images showed that the tumor was hypervascular and especially had heterogeneous signal intensity on hepatobiliary phase MRI images. Intratumoral vessels and vascular invasion were also present.
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Affiliation(s)
- Tao Lu
- Department of Radiology, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Wenhao Yang
- Organ Transplantation Center, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, Sichuan, China
| | - Xingchao Liu
- Organ Transplantation Center, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, Sichuan, China
| | - Xudan Yang
- Department of Pathology, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Chong Yang
- Organ Transplantation Center, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, Sichuan, China
- Correspondence to: Wenjia Di and Chong Yang, Organ Transplantation Center, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, China. ORCID: https://orcid.org/0000-0002-0060-706X (CY). Tel: +86-28-8739-3707, Fax: +86-28-8778-5585, E-mail: (WD), (CY)
| | - Wenjia Di
- Organ Transplantation Center, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, Sichuan, China
- Correspondence to: Wenjia Di and Chong Yang, Organ Transplantation Center, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, China. ORCID: https://orcid.org/0000-0002-0060-706X (CY). Tel: +86-28-8739-3707, Fax: +86-28-8778-5585, E-mail: (WD), (CY)
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Abstract
Primitive neuroectodermal tumors (PNET, previously referred to as peripheral neuroepithelioma) are rare malignant tumors with various degrees of differentiation belonging to the Ewing’s family of sarcomas. They are classified as round cell tumors arising from soft tissues. In rare instances, PNETs may arise from solid organs containing neuroendocrine cells of kidney, bladder, heart, lungs, parotid glands and pancreas. Most cases occur in the second decade of life with a slight preponderance in males. PNET of the pancreas is an aggressive tumor with multiple recurrences and a relatively poor prognosis. These tumors should be considered in the differential diagnosis, especially in a diagnosed pancreatic tumor in individuals less than 35 years of age. Due to the nature of the tumor, surgery with subsequent chemoradiation are widely accepted modalities despite the poor prognosis. In this article, we review 25 cases of extraosseous Ewing’s sarcoma (ES) of the pancreas which to the best of our knowledge, enlists most cases reported in the literature thus far.
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Affiliation(s)
- Dharti Patel
- Internal Medicine, Oak Hill Hospital, Brooksville, USA
| | - Nitish Singh Nandu
- Internal Medicine, Chicago Medical School, Rosalind Franklin University, North Chicago, USA
| | - Aravind Reddy
- Internal Medicine, Chicago Medical School, Rosalind Franklin University, North Chicago, USA
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Metastasis of Ewing Sarcoma to the Pancreas: Case Report and Literature Review. Case Rep Oncol Med 2020; 2020:7075048. [PMID: 32257479 PMCID: PMC7115132 DOI: 10.1155/2020/7075048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 02/24/2020] [Accepted: 03/13/2020] [Indexed: 12/19/2022] Open
Abstract
Ewing sarcoma (ES) is a highly aggressive malignant bone cancer. ES is part of the Ewing sarcoma family of tumors (ESFT), which express characteristic t(11;22) translocation as well as higher levels of CD99. Given that metastasis and tumor burden are significant prognostic factors in patient's response to treatment, prompt diagnosis is needed to effectively treat ESFT patients. However, the challenges in classifying and characterizing ESFT complicate effective management and treatment of ES. In this report, we present a rare case of ES metastasis to the pancreas. Upon review of the literature, we found 39 cases of ESFT involving the pancreas, but only 3 were metastatic to the pancreas while the remaining cases of ESFT primarily originated from the pancreas. Given the rarity of such metastasis, the positive outcome in our patient's case may explain the importance of prompt diagnosis in order to initiate appropriate treatment.
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Bong C, Thomson I, Lampe G. Case report and literature review of Ewing's sarcoma in the gastrointestinal tract. SURGICAL PRACTICE 2018; 22:84-92. [DOI: 10.1111/1744-1633.12292] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Christopher Bong
- Department of Upper Gastrointestinal Surgery and Soft Tissue; Princess Alexandra Hospital; Woolloongabba Queensland Australia
| | - Iain Thomson
- Department of Upper Gastrointestinal Surgery and Soft Tissue; Princess Alexandra Hospital; Woolloongabba Queensland Australia
| | - Guy Lampe
- Department of Anatomical Pathology; Princess Alexandra Hospital; Woolloongabba Queensland Australia
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Komforti MK, Sokolovskaya E, D’Agostino CA, Benayed R, Thomas RM. Extra-osseous Ewing sarcoma of the pancreas: case report with radiologic, pathologic, and molecular correlation, and brief review of the literature. Virchows Arch 2018; 473:361-369. [DOI: 10.1007/s00428-018-2344-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 03/20/2018] [Accepted: 03/21/2018] [Indexed: 01/01/2023]
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Abstract
Extraosseous Ewing's sarcoma/primitive neuroectodermal tumor (ES/PNET) is a rare but aggressive and malignant tumor, and has been reported in various sites such as the lungs, biliary tract, kidney, prostate, stomach, esophagus, oral cavity, salivary glands, urinary bladder, uterus, cervix, gonads, and vagina. However, the pancreas is considered to be an extremely uncommon site and only a handful of cases have been published to date. We present here another case of a pancreatic ES/PNET. Our case intensifies the importance to recognize this rare type of tumor in the pancreas as there is a broad spectrum of tumors with a similar morphology that includes sheets of small, round blue cells. As observed in our present case, this problem is markedly challenged when the tumor site of origin is uncertain.
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Nishizawa N, Kumamoto Y, Igarashi K, Nishiyama R, Tajima H, Kawamata H, Kaizu T, Watanabe M. A peripheral primitive neuroectodermal tumor originating from the pancreas: a case report and review of the literature. Surg Case Rep 2015; 1:80. [PMID: 26380804 PMCID: PMC4567589 DOI: 10.1186/s40792-015-0084-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Accepted: 09/07/2015] [Indexed: 12/12/2022] Open
Abstract
A peripheral primitive neuroectodermal tumor (pPNET) is a small round cell tumor occurring mostly in children or young adults and categorized into the Ewing sarcoma family of tumors. pPNETs originating from the pancreas are especially rare, and only 25 cases have been reported in the literature. We report a case of a 22-year-old man who had a giant expansive tumor located in the uncinate process of the pancreas, 80 mm in diameter resulting in obstruction in the duodenum. The patient underwent a pancreaticoduodenectomy. The histological examination showed that the pancreatic tumor was composed of atypical small round cells. Immunohistochemical findings were positive for CD99. An Ewing sarcoma breakpoint region 1 gene 22q12 rearrangement was proven by a two-color fluorescence in situ hybridization assay. We diagnosed the tumor as a pPNET of the pancreas, which, according to the literature, is highly aggressive with poor prognosis. A multidisciplinary approach to treat these neoplasms should improve the prognoses.
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Affiliation(s)
- Nobuyuki Nishizawa
- Department of Surgery, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0374 Japan
| | - Yusuke Kumamoto
- Department of Surgery, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0374 Japan
| | - Kazuharu Igarashi
- Department of Surgery, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0374 Japan
| | - Ryo Nishiyama
- Department of Surgery, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0374 Japan
| | - Hiroshi Tajima
- Department of Surgery, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0374 Japan
| | - Hiroshi Kawamata
- Department of Surgery, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0374 Japan
| | - Takashi Kaizu
- Department of Surgery, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0374 Japan
| | - Masahiko Watanabe
- Department of Surgery, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0374 Japan
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10
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Abstract
OBJECTIVE Primary mesenchymal tumors of the pancreas are extremely rare and no comprehensive study of this class of tumors has been previously performed. METHODS Twenty cases of the primary mesenchymal tumors of the pancreas were selected and compared clinicopathologic variables with consecutively resected 500 pancreatic ductal adenocarcinomas. RESULTS Finally, 20 (0.3%) cases were confirmed as primary mesenchymal tumors. The 14 (70%) cases of benign/borderline tumors included 4 cases of fibromatoses, 2 cases of cavernous hemangiomas, 2 cases of schwannomas, 2 cases of solid and cystic hamartomas, 2 cases of solitary fibrous tumors, 1 case of inflammatory myofibroblastic tumor, and 1 case of angiomyolipoma. The 6 (30%) cases of sarcomas comprised 3 cases of undifferentiated/unclassified sarcomas, 1 case of leiomyosarcoma, 1 case of Ewing sarcoma/primitive neuroectodermal tumor, and 1 case of atypical lipomatous tumor/well-differentiated liposarcoma. When compared with the 500 ductal adenocarcinomas, the 3 surgically resected sarcomas were larger (mean, 5.8 cm vs 3.6 cm; P = 0.02); however, no difference in median survival time was observed between patients with sarcoma (23 months) and patients with ductal adenocarcinoma (16 months). CONCLUSIONS First, primary mesenchymal tumors of the pancreas are extremely rare. Second, several primary mesenchymal tumor types can be observed in the pancreas. Understanding these rare disease entities will help ensure their correct diagnosis.
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Dias AR, Arantes T, Sampaio RC, Jureidini R, Cunha JEMD, Cecconello I. [Pancreatic primitive neuroectodermal tumor: case report]. ABCD-ARQUIVOS BRASILEIROS DE CIRURGIA DIGESTIVA 2014; 26:159-61. [PMID: 24000035 DOI: 10.1590/s0102-67202013000200021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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12
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Reilly C, Zenoni S, Hasan MK, Varadarajulu S, Tran TA, de la Fuente SG, Arnoletti JP. Primary pancreatic Ewing's sarcoma with portal vein tumor thrombosis. J Gastrointest Surg 2013. [PMID: 23192427 DOI: 10.1007/s11605-012-2098-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Extraosseous Ewing's sarcoma (EES) is a mesenchyme-derived small blue cell tumor, which is distinguished by its rarity, aggressiveness, dismal prognosis, and distinct pathogenesis. Occurring almost exclusively among children and young adults, EES can arise from a variety of organs and portends a rapid clinical deterioration and high likelihood of recurrence. DISCUSSION We present the first reported case of a primary pancreatic Ewing's sarcoma in a patient with concomitant portal vein thrombosis. The atypical presentation of this extraordinarily rare tumor underscores the imperative to maintain EES in the differential diagnosis of suspicious, indistinct pancreatic lesions in young patients. In addition, we review the available literature describing additional cases of primary pancreatic Ewing's sarcoma.
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Affiliation(s)
- Chris Reilly
- University of Central Florida College of Medicine, Oviedo, FL 32765, USA.
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Bernstein J, Adeniran AJ, Cai G, Theoharis CGA, Ustun B, Beckman D, Aslanian HR, Harigopal M. Endoscopic ultrasound-guided fine-needle aspiration diagnosis of merkel cell carcinoma metastatic to the pancreas. Diagn Cytopathol 2012; 42:247-52. [DOI: 10.1002/dc.22884] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Accepted: 05/24/2012] [Indexed: 11/06/2022]
Affiliation(s)
- Jane Bernstein
- Department of Pathology; Cytopathology; Yale University, School of Medicine; New Haven Connecticut
| | - Adebowale J. Adeniran
- Department of Pathology; Cytopathology; Yale University, School of Medicine; New Haven Connecticut
| | - Guoping Cai
- Department of Pathology; Cytopathology; Yale University, School of Medicine; New Haven Connecticut
| | | | - Berrin Ustun
- Department of Pathology; Cytopathology; Yale University, School of Medicine; New Haven Connecticut
| | - Danita Beckman
- Department of Pathology; Cytopathology; Yale University, School of Medicine; New Haven Connecticut
| | - Harry R. Aslanian
- Department of Medicine; Section of Digestive Disease; Yale University, School of Medicine; New Haven Connecticut
| | - Malini Harigopal
- Department of Pathology; Cytopathology; Yale University, School of Medicine; New Haven Connecticut
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Primitive neuroectodermal tumor of the liver: a case report. Case Rep Med 2011; 2011:748194. [PMID: 22242031 PMCID: PMC3254232 DOI: 10.1155/2011/748194] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2011] [Revised: 09/26/2011] [Accepted: 09/29/2011] [Indexed: 12/28/2022] Open
Abstract
Primary liver sarcomas represent a rare group of neoplasias, with angiosarcoma being the most common histological type. Primitive neuroectodermal tumor (PNET) represents a high malignant neoplasia that usually affects the central nervous system and soft tissues. An 18-year-old male patient was admitted with clinical complains of pain in the right upper abdominal quadrant. The clinical evaluation revealed a solid mass in the right hepatic lobe. On the gross examination of the resected liver specimen, the right lobe of the liver was replaced by a yellow-red solid mass measuring 21 cm in its largest dimension. On the histopathology, a tumor composed of small round blue cells with little cytoplasm and round nuclei was identified. The lesion revealed positive immunoexpression for vimentin and CD99 and negative immunostaining for desmin, CD45, cytokeratin, and neuroblastoma protein, suggesting, then, the diagnosis of PNET. Although it is an unusual tumor, it should be considered in the differential diagnosis of liver masses, especially in young patients.
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Uncommon presentation of rare disorder-duodenal ulcer secondary to invasive pancreatic primitive neuroectodermal tumor: case report and review of the literature. J Pediatr Hematol Oncol 2011; 33:543-8. [PMID: 21716138 DOI: 10.1097/mph.0b013e31821041af] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The authors report an unusual presentation of a rare tumor in childhood, a pancreatic primitive neuroectodermal tumor invading the duodenum leading to anemia. A review of intra-abdominal primitive neuroectodermal tumors is discussed.
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Bose P, Murugan P, Gillies E, Holter JL. Extraosseous Ewing's sarcoma of the pancreas. Int J Clin Oncol 2011; 17:399-406. [PMID: 21892669 DOI: 10.1007/s10147-011-0311-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2010] [Accepted: 08/15/2011] [Indexed: 12/11/2022]
Abstract
The Ewing's family of tumors (EFT) comprises a molecularly defined group of "small round blue cell tumors", consisting of Ewing's sarcoma of bone (ESB), extraosseous Ewing's sarcoma (EES), peripheral primitive neuroectodermal tumor (pPNET), and Askin's tumor. Characteristic translocations that disrupt the EWSR1 gene located at 22q12 create novel fusion genes that are central to the pathogenesis. The EFT also shares certain clinical characteristics, such as a peak incidence during the teenage years, a tendency to spread rapidly, and responsiveness to the same chemotherapeutic regimens and radiation therapy. Nearly all patients have occult disseminated disease at diagnosis; hence, chemotherapy is routinely used. Improvements in multimodality treatment have had a dramatic impact on outcomes. EES/pPNET has been reported in a variety of sites, including the pancreas, though this is extremely rare. We describe a case of pancreatic EES/pPNET in a 35-year-old woman and provide a brief review of the relevant literature.
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Affiliation(s)
- Prithviraj Bose
- Hematology/Oncology Division, Department of Internal Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA.
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Detection of recurrent pancreatic primitive neuroectodermal tumor by tc-99m hydrazinonicotinyl-tyr3-octreotide scan. Clin Nucl Med 2011; 36:54-5. [PMID: 21157213 DOI: 10.1097/rlu.0b013e3181feeffa] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
A 24-year-old asymptomatic female with a history of exophytic primitive neuroectodermal tumor in the uncinate process of the pancreas was evaluated by Tc-99m hydrazinonicotinyl-Tyr3-octreotide (HYNIC-TOC) imaging as a part of the routine check-up. The images revealed focally increased activity in the head of the pancreas, indicating possible recurrent tumor. However, the results of all examinations considered, especially because of negative results from anatomic imaging, the finding from the HYNIC-TOC scan was regarded as likely false positive, and no new actions were taken. Eighteen months later, the patient developed abdominal mass. Repeat HYNIC-TOC imaging redemonstrated the focus of abnormal activity, which was confirmed as recurrent primitive neuroectodermal tumor pathologically.
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