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Sun M, Shao M, Jiang X, Yin T, Wang Q, Zhao L, Liu J, Lao IW, Yu L, Wang J. Desmoplastic Small Round Cell Tumor of the Head and Neck: A Clinicopathological, Immunohistochemical and Molecular Analysis of Three Cases with Literature Review. Int J Surg Pathol 2022:10668969221117989. [PMID: 36172631 DOI: 10.1177/10668969221117989] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Desmoplastic small round cell tumor (DSRCT) is a rare aggressive malignancy typically originating from the abdominal or pelvic cavity. DSRCT presenting as a primary head and neck tumor has rarely been described in the literature. We present three cases of DSRCT arising in the head and neck to further characterize its clinicopathological features. All three patients were male and aged 36, 30 and 17 years. The involved sites included the orbit (1 case) and submandibular gland (2 cases). The tumors ranged in size from 2.4 to 3.5 cm (mean, 2.1 cm). Histologically, all tumors showed irregular-shaped, variable-sized nests of small round cells deposited in an abundant desmoplastic stroma. Tumor cells contained scant amounts of eosinophilic cytoplasm and small hyperchromatic nuclei with inconspicuous nucleoli. Immunohistochemically, the tumors were positive for keratin (AE1/AE3) (3/3), desmin (3/3), vimentin (2/2), NSE (1/1) and EMA (1/1). Fluorescence in situ hybridization (FISH) analysis demonstrated the presence of EWSR1 and WT1 rearrangements in all three cases. All patients received surgery and adjuvant chemotherapy and/or radiotherapy. There was no evidence of recurrence and metastasis in two patients, and the third suffered lung metastasis. DSRCT arising in the head and neck represents an extremely rare condition. It is easily mistaken as poorly differentiated carcinoma due to similar morphology and expression of epithelial markers. Immunohistochemistry assay in conjunction with molecular detection of EWSR1::WT1 fusion will be helpful for arriving at an accurate diagnosis to avoid misdiagnosis and inappropriate treatment.
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Affiliation(s)
- Meng Sun
- Department of Pathology, 89667Fudan University Shanghai Cancer Center, Shanghai, 200032, China.,Department of Oncology, 162764Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Mengyuan Shao
- Department of Pathology, 89667Fudan University Shanghai Cancer Center, Shanghai, 200032, China.,Department of Oncology, 162764Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Xuebing Jiang
- Department of Pathology, Fudan University Minhang Hospital, Fudan University, Shanghai 200032, China
| | - Tangchen Yin
- Department of Pathology, 89667Fudan University Shanghai Cancer Center, Shanghai, 200032, China.,Department of Oncology, 162764Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Qifeng Wang
- Department of Pathology, 89667Fudan University Shanghai Cancer Center, Shanghai, 200032, China.,Department of Oncology, 162764Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Lu Zhao
- Department of Pathology, 89667Fudan University Shanghai Cancer Center, Shanghai, 200032, China.,Department of Oncology, 162764Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Jiahan Liu
- Department of Pathology, 89667Fudan University Shanghai Cancer Center, Shanghai, 200032, China.,Department of Oncology, 162764Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - I Weng Lao
- Department of Pathology, 89667Fudan University Shanghai Cancer Center, Shanghai, 200032, China.,Department of Oncology, 162764Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Lin Yu
- Department of Pathology, 89667Fudan University Shanghai Cancer Center, Shanghai, 200032, China.,Department of Oncology, 162764Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Jian Wang
- Department of Pathology, 89667Fudan University Shanghai Cancer Center, Shanghai, 200032, China.,Department of Oncology, 162764Shanghai Medical College, Fudan University, Shanghai, 200032, China
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2
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Hendricks A, Boerner K, Germer CT, Wiegering A. Desmoplastic Small Round Cell Tumors: A review with focus on clinical management and therapeutic options. Cancer Treat Rev 2020; 93:102140. [PMID: 33388539 DOI: 10.1016/j.ctrv.2020.102140] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 11/30/2020] [Accepted: 12/13/2020] [Indexed: 02/06/2023]
Abstract
Desmoplastic Small Round Cell Tumors (DSRCTs) are an entity of rare, aggressive soft tissue sarcomas described by Gerald and Rosai in 1989. It predominantly affects male adolescents and young adults, with a peak incidence between an age of 20 and 30 years. Typically, DSRCT demonstrate as multiple small tumor nodules within the abdominal cave, retroperitoneum and pelvis. In more than 50% of the cases, the neoplasm presents metastatic at the timepoint of diagnosis. Histologically, DSRCTs have a characteristic morphology with sharply demarcated islands of uniform small round cells in abundant desmoplastic stroma organized in loose extracellular matrix. Immunohistochemistry reveals a polyphenotypic differentiation with co-expression of epithelial, myogenic, mesenchymal and neural markers. The morphology is highly variable and can hinder diagnosis. The most consistent molecular characteristic of DSRCT is the reciprocal t(11;22)(p13q12) translocation. This mutation leads to a formation of the EWSR1-WT1 fusion oncogene, which encodes for a chimeric protein with transcriptional regulatory activity and is regarded as driving source of the disease. To date, there is no standardized concept for clinical management, staging and treatment. Patients receive an aggressive multimodal therapeutic approach consisting of chemotherapy, radical surgical procedures, hyperthermic, intraperitoneal chemotherapy (HIPEC) and radiation. New targeted therapies are used in experimental settings as salvage therapy. So far, none of these therapies showed significant long-term success. This review gives an overview of diagnostic difficulties and pitfalls, discusses therapeutic strategies and highlights options for clinical management.
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Affiliation(s)
- Anne Hendricks
- Department of General, Visceral, Transplant, Vascular and Pediatric Surgery, University Hospital, University of Wuerzburg, Oberduerrbacherstr. 2, 97080 Wuerzburg, Germany
| | - Kevin Boerner
- Department of General, Visceral, Transplant, Vascular and Pediatric Surgery, University Hospital, University of Wuerzburg, Oberduerrbacherstr. 2, 97080 Wuerzburg, Germany; Department of Pathology, University of Michigan, Ann Arbor, MI 48109, United States
| | - Christoph-Thomas Germer
- Department of General, Visceral, Transplant, Vascular and Pediatric Surgery, University Hospital, University of Wuerzburg, Oberduerrbacherstr. 2, 97080 Wuerzburg, Germany; Comprehensive Cancer Centre Mainfranken, University of Wuerzburg Medical Center, Josef-Schneiderstr. 6, 97080 Wuerzburg, Germany
| | - Armin Wiegering
- Department of General, Visceral, Transplant, Vascular and Pediatric Surgery, University Hospital, University of Wuerzburg, Oberduerrbacherstr. 2, 97080 Wuerzburg, Germany; Comprehensive Cancer Centre Mainfranken, University of Wuerzburg Medical Center, Josef-Schneiderstr. 6, 97080 Wuerzburg, Germany; Department of Biochemistry and Molecular Biology, University of Wuerzburg, Germany.
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3
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Saleh D, Al-Maghrabi S, Al-Maghrabi H, Al-Maghrabi J. Desmoplastic Small Round Cell Tumor of Pancreatic Origin in a Young Child: A Case Report and Review of Literature. AMERICAN JOURNAL OF CASE REPORTS 2020; 21:e922762. [PMID: 32655125 PMCID: PMC7377525 DOI: 10.12659/ajcr.922762] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Desmoplastic small round cell tumor (DSRCT) is a rare lethal malignant tumor with young male predominance. The majority of cases arise in the abdominopelvic region and are hypothesized to have a mesothelial origin. However, extra-abdominal and extraperitoneal DSRCT have been reported. It is extremely uncommon for the pancreas to be a primary site for DSRCT, and only 5 cases have previously been reported in the English literature. Clinically, DSRCT has a wide range of presentations from asymptomatic to life-threatening comorbidity, and it responds poorly to treatment despite aggressive therapy. CASE REPORT We report a previously healthy 9-year-old boy with an incidentally discovered abdominal mass of pancreatic origin. All necessary laboratory investigations were within normal limits. Computed tomographic imaging showed a huge left-side retroperitoneal mass measuring 15 cm in the greatest dimension that was accompanied by vascular encasement. The mass was resected successfully. Histopathological examination along with ancillary tests favored a diagnosis of DSRCT over other small round blue cell tumors. Detection of translocation t(11;22)(p13;q12) with EWSR1-WT1 gene fusion, based on reverse transcription-polymerase chain reaction analysis, confirmed the diagnosis. Approximately 7 months later, the tumor recurred with mesenteric lymph nodes metastasis and the child was placed on palliative therapy. CONCLUSIONS It is worthwhile to consider DSRCT in the differential diagnosis of small round blue cell tumors, even in unusual sites, in a pediatric age group. Due to the poor prognosis, owing to chemotherapy resistance and a high rate of recurrence with significant tumor burden, reaching a precise diagnosis of DSRCT is essential. Almost all cases harbor the hallmark molecular alteration of t(11;22)(p13;q12) with EWSR1-WT1 gene fusion. Debulking surgery paired with a chemotherapy regimen comprising vincristine, doxorubicin, and cyclophosphamide and ifosfamide + etoposide has been shown to improve overall survival rate compared with other chemotherapeutic agents. However, no targeted therapeutic modality has been developed.
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Affiliation(s)
- Daniyah Saleh
- Department of Anatomic Pathology, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
| | - Sahar Al-Maghrabi
- Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Haneen Al-Maghrabi
- Department of Anatomic Pathology, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
| | - Jaudah Al-Maghrabi
- Department of Anatomic Pathology, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia.,Department of Pathology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
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4
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Lee JC, Villanueva-Meyer JE, Ferris SP, Cham EM, Zucker J, Cooney T, Gilani A, Kleinschmidt-DeMasters BK, Trembath D, Mafra M, Chiang J, Ellison DW, Cho SJ, Horvai AE, Van Ziffle J, Onodera C, Devine P, Grenert JP, de Voijs CMA, van Blokland WTM, de Leng WWJ, Ploegmakers MJ, Flucke U, Pekmezci M, Bollen AW, Tihan T, Koelsche C, von Deimling A, Wesseling P, Solomon DA, Perry A. Clinicopathologic and molecular features of intracranial desmoplastic small round cell tumors. Brain Pathol 2019; 30:213-225. [PMID: 31837177 DOI: 10.1111/bpa.12809] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 12/09/2019] [Indexed: 12/11/2022] Open
Abstract
Desmoplastic small round cell tumors (DSRCTs) are highly aggressive sarcomas that most commonly occur intra-abdominally, and are defined by EWSR1-WT1 gene fusion. Intracranial DSRCTs are exceptionally rare with only seven previously reported fusion-positive cases. Herein, we evaluate the clinical, morphologic, immunohistochemical and molecular features of five additional examples. All patients were male (age range 6-25 years; median 11 years), with four tumors located supratentorially and one within the posterior fossa. The histologic features were highly variable including small cell, embryonal, clear cell, rhabdoid, anaplastic and glioma-like appearances. A prominent desmoplastic stroma was seen in only two cases. The mitotic index ranged from <1 to 12/10 HPF (median 5). While all tumors showed strong desmin positivity, epithelial markers such as EMA, CAM 5.2 and other keratins were strongly positive in only one, focally positive in two and negative in two cases. EWSR1-WT1 gene fusion was present in all cases, with accompanying mutations in the TERT promoter or STAG2 gene in individual cases. Given the significant histologic diversity, in the absence of genetic evaluation these cases could easily be misinterpreted as other entities. Desmin immunostaining is a useful initial screening method for consideration of a DSRCT diagnosis, prompting confirmatory molecular testing. Demonstrating the presence of an EWSR1-WT1 fusion provides a definitive diagnosis of DSRCT. Genome-wide methylation profiles of intracranial DSRCTs matched those of extracranial DSRCTs. Thus, despite the occasionally unusual histologic features and immunoprofile, intracranial DSRCTs likely represent a similar, if not the same, entity as their soft tissue counterpart based on the shared fusion and methylation profiles.
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Affiliation(s)
- Julieann C Lee
- Department of Pathology, University of California, San Francisco, CA
| | | | - Sean P Ferris
- Department of Pathology, University of California, San Francisco, CA
| | - Elaine M Cham
- Department of Pathology, UCSF Benioff Children's Hospital Oakland, Oakland, CA
| | - Jacob Zucker
- Department of Hematology/Oncology, Renown Children's Hospital, Reno, NV
| | - Tabitha Cooney
- Department of Hematology/Oncology, UCSF Benioff Children's Hospital Oakland, Oakland, CA
| | - Ahmed Gilani
- Department of Pathology, University of Colorado, Denver, CO
| | | | - Dimitri Trembath
- Department of Pathology, The University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Manuela Mafra
- Department of Pathology, The Portuguese Institute of Oncology, Lisbon, Portugal
| | - Jason Chiang
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN
| | - David W Ellison
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN
| | - Soo-Jin Cho
- Department of Pathology, University of California, San Francisco, CA
| | - Andrew E Horvai
- Department of Pathology, University of California, San Francisco, CA
| | - Jessica Van Ziffle
- Department of Pathology, University of California, San Francisco, CA.,Clinical Cancer Genomics Laboratory, University of California, San Francisco, CA
| | - Courtney Onodera
- Department of Pathology, University of California, San Francisco, CA.,Clinical Cancer Genomics Laboratory, University of California, San Francisco, CA
| | - Patrick Devine
- Department of Pathology, University of California, San Francisco, CA.,Clinical Cancer Genomics Laboratory, University of California, San Francisco, CA
| | - James P Grenert
- Department of Pathology, University of California, San Francisco, CA.,Clinical Cancer Genomics Laboratory, University of California, San Francisco, CA
| | - Carmen M A de Voijs
- Department of Pathology, University Medical Center Utrecht, Utrecht, the Netherlands
| | | | - Wendy W J de Leng
- Department of Pathology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Marieke J Ploegmakers
- Department of Radiology, Radboud University Medical Center Nijmegen, Nijmegen, the Netherlands
| | - Uta Flucke
- Department of Pathology, Radboud University Medical Center Nijmegen, Nijmegen, the Netherlands
| | - Melike Pekmezci
- Department of Pathology, University of California, San Francisco, CA
| | - Andrew W Bollen
- Department of Pathology, University of California, San Francisco, CA
| | - Tarik Tihan
- Department of Pathology, University of California, San Francisco, CA
| | - Christian Koelsche
- Department of General Pathology, Institute of Pathology, Heidelberg University Hospital, Heidelberg, Germany
| | - Andreas von Deimling
- Clinical Cooperation Unit Neuropathology, German Cancer Research Center (DKFZ), German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany.,Department of Neuropathology, Institute of Pathology, Heidelberg University Hospital, Heidelberg, Germany
| | - Pieter Wesseling
- Princess Máxima Center for Pediatric Oncology, Utrecht, and Amsterdam University Medical Centers/VUmc, Amsterdam, the Netherlands
| | - David A Solomon
- Department of Pathology, University of California, San Francisco, CA.,Clinical Cancer Genomics Laboratory, University of California, San Francisco, CA
| | - Arie Perry
- Department of Pathology, University of California, San Francisco, CA
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5
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Halcrow PW, Dancer M, Panteah M, Walden C, Ohm JE. Molecular Changes Associated With Tumor Initiation and Progression of Soft Tissue Sarcomas: Targeting the Genome and Epigenome. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2016; 144:323-380. [PMID: 27865462 DOI: 10.1016/bs.pmbts.2016.10.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Soft tissue sarcomas are rare, but generally aggressive tumors which disproportionately affect children and young adults. They represent less than 10% of all cancers, but are one of the most frequently diagnosed cancers in pediatric patients. These cancers have a high rate of morbidity and mortality, and their overall incidence has been increasing at an estimated rate of 26% over the last 2 decades. The cause of this increased incidence is unknown but various environmental factors have been implicated. Establishing standard therapeutic strategies is challenging for soft tissue sarcomas as more than 50 different histological subtypes exist, each with their own molecular alterations and clinical characteristics, and this combination of tumor heterogeneity and a limited number of clinical cases make detailed omics level molecular studies particularly challenging. This chapter will focus on the unique genetic and epigenetic changes which characterize these cancers, with an emphasis on translocation-associated sarcomas involving primary gene fusions with the RNA chaperone protein EWSR1. We will highlight current therapeutic approaches and discuss opportunities for targeted molecular therapeutics.
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Affiliation(s)
- P W Halcrow
- University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND, United States
| | - M Dancer
- University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND, United States
| | - M Panteah
- University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND, United States
| | - C Walden
- University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND, United States
| | - J E Ohm
- Roswell Park Cancer Institute, Buffalo, NY, United States.
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6
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Cook RJ, Wang Z, Arora M, Lazarus HM, Kasow KA, Champagne MA, Saber W, van Besien KM, Hale GA, Copelan EA, Elmongy M, Ueno NT, Horn BN, Slavin S, Bishop MR, Stadtmauer EA. Clinical outcomes of patients with desmoplastic small round cell tumor of the peritoneum undergoing autologous HCT: a CIBMTR retrospective analysis. Bone Marrow Transplant 2012; 47:1455-8. [PMID: 22465977 PMCID: PMC3951901 DOI: 10.1038/bmt.2012.57] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2011] [Revised: 02/22/2012] [Accepted: 02/29/2012] [Indexed: 11/09/2022]
Abstract
Desmoplastic small round cell tumor of the peritoneum (DSRCTP) is a rare, frequently fatal tumor. This retrospective study, based on CIBMTR registry data, describes the largest reported cohort of DSRCTP patients who have undergone Auto-SCT. The probabilities of disease-free survival (DFS) at 1 year for patients in CR and not in CR were 75% (95% confidence interval: 48-94%) and 35% (15-59%), respectively. The probability of OS at 3 years was 57% (29-83%) and 28% (9-51%) for patients in CR and not in CR, respectively. Median survival for the entire cohort was 31 months (36 months and 21 months for those in CR and not in CR, respectively). Engraftment at 42 days was 97% (88-100%). Treatment-related mortality was low, with only one death in the first 100 days. Auto-SCT is a tolerable approach in patients with DSRCTP, with the greatest benefit seen in those patients who obtain CR. For those not in CR, the median OS in this series is greater than previously reported (21 months vs 17 months), suggesting Auto-SCT is useful in prolonging DFS and OS, even in patients with residual or persistent disease pre-transplant.
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Affiliation(s)
- R J Cook
- University of Wisconsin Hospital and Clinics, Madison, WI 53792, USA.
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7
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Qureshi SS, Shrikhande S, Ramadwar M, Desai S, Visvanathan S, Medhi SS, Laskar S, Muckaden MA, Pai SK, Desai S, Kurkure PA. Desmoplastic small round cell tumor of the pancreas: An unusual primary site for an uncommon tumor. J Indian Assoc Pediatr Surg 2011; 16:66-8. [PMID: 21731236 PMCID: PMC3119941 DOI: 10.4103/0971-9261.78135] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Pancreas is a rare location for desmoplastic small round cell tumor. The present case highlights the dilemma in diagnosis and ascertaining the site of tumor origin. Morphologic and immunohistochemical features were complemented with the molecular markers and tumor origin which was initially nebulous was subsequently confirmed on exploratory laparotomy.
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Affiliation(s)
- Sajid S Qureshi
- Pediatric Surgical Oncology Services, Tata Memorial Centre, Mumbai, India
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8
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Neuzillet C, Hammel P, Couvelard A, Msika S, Felce-Dachez M, Laé M, Lévy P, Ruszniewski P. [Desmoplastic small round cell tumour of the pancreas with breast metastasis]. ACTA ACUST UNITED AC 2009; 33:217-24. [PMID: 19268512 DOI: 10.1016/j.gcb.2008.10.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2008] [Revised: 10/22/2008] [Accepted: 10/23/2008] [Indexed: 11/25/2022]
Abstract
Desmoplastic small round cell tumour (DSRCT) is a very rare, highly aggressive neoplasm. Most cases have been reported in adolescent and young male patients. These tumours occur mainly in the peritoneal cavity, with peritoneal and lymphatic dissemination. Their histologic features are unspecific and immunohistochemistry and cytogenetic or biomolecular techniques are required for their diagnosis. Involvement of the pancreas is exceptional and is difficult to differentiate from other pancreatic primary tumours. We report here the case of a 49-year-old woman who had a DSRCT of the pancreas with metastasis to the breast. She died within one year after the diagnosis despite an aggressive surgical strategy.
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Affiliation(s)
- C Neuzillet
- Pôle des maladies de l'appareil digestif, hôpital Beaujon, 100, boulevard du Général-Leclerc, 92110 Clichy, France
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9
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[Desmoplastic small round-cell tumor: two cases of diffuse abdominopelvic infiltration]. ACTA ACUST UNITED AC 2008; 32:278-81. [PMID: 18663785 DOI: 10.1016/j.gcb.2008.01.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Desmoplastic small round-cell tumors are a rare malignant tumor that affects male children and young adults. It frequently presents as a large abdominal mass with widespread peritoneal involvement at diagnosis. We report two cases of desmoplastic small round-cell tumors, with diffuse infiltration in the abdomen and pelvis in two adult caucasian males. The first case-report is a middle-aged man and the second a young adult man with early recurrence and diffuse metastatic lymph nodes. Both tumors have a distinct morphology, a polyphenotypic differentiation and a t(11;22) (p13;q12) translocation. The prognosis remains poor and leads to death in most cases, despite surgical resection, radiotherapy and high-dose chemotherapy.
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10
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Bouchireb K, Auger N, Bhangoo R, Di Rocco F, Brousse N, Delattre O, Varlet P, Grill J. Intracerebral small round cell tumor: an unusual case with EWS-WT1 translocation. Pediatr Blood Cancer 2008; 51:545-8. [PMID: 18561179 DOI: 10.1002/pbc.21648] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Desmoplastic small round cell tumor (DSRCT) is a rare tumor, seen both in children and young adults with a marked predilection for the peritoneal cavity. Histology showed a small round cell tumor with a fibromyxoïd stroma and immunohistochemistry indicated neural and mesenchymal differentiation, and diagnosis was made by molecular detection of the EWS-WT1 fusion gene product. DSRCT should be considered in the differential diagnosis of intracranial small round cell tumors.
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Affiliation(s)
- Karim Bouchireb
- Department of Pediatric and Adolescent Oncology, Institut Gustave Roussy, Villejuif, France
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