Synovial Sarcoma of the Gastrointestinal Tract
Copyright © 2023 United States & Canadian Academy of Pathology. Published by Elsevier Inc. All rights reserved..
SSX (4/4 cases). Pancytokeratin and EMA immunohistochemistry were performed on 13 and 9 tumors, respectively, and each showed patchy-to-diffuse staining. By reverse-transcription PCR, 3 cases were positive for the SS18::SSX1, and 2 cases were positive for the SS18::SSX2 gene fusion. Six cases contained an SS18 gene rearrangement by fluorescence in situ hybridization, and next-generation sequencing identified an SS18::SSX2 gene fusion in one case. Clinical follow-up information was available for 9 patients (4 months to 4.6 years; mean, 2.8 y; median: 29 months), and one patient had a recent diagnosis. Three patients died of disease within 41 to 72 months (mean, 56 months) of their diagnosis. Five patients were alive without evidence of disease 4 to 52 months (mean, 17.6 months) after surgery; of whom 1 of the patients received additional chemotherapy treatment after surgery because of recurrence of the disease. A single patient was alive with intraabdominal recurrence 13 months after surgery. We conclude that synovial sarcoma of the gastrointestinal tract is an aggressive tumor, similar to its soft tissue counterpart, with adverse patient outcomes. It is important to distinguish it from morphologically similar gastrointestinal tract lesions that may have different treatment regimens and prognoses.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:37 |
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| Enthalten in: |
Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc - 37(2024), 1 vom: 17. Jan., Seite 100383 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Ortiz Requena, Domenika [VerfasserIn] |
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| Links: |
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| Themen: |
Biomarkers, Tumor |
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| Anmerkungen: |
Date Completed 22.01.2024 Date Revised 22.01.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.modpat.2023.100383 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM364644958 |
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| 245 | 1 | 0 | |a Synovial Sarcoma of the Gastrointestinal Tract |
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| 520 | |a Copyright © 2023 United States & Canadian Academy of Pathology. Published by Elsevier Inc. All rights reserved. | ||
| 520 | |a We report the clinicopathologic and immunohistochemical features of 18 cases of confirmed primary synovial sarcoma of the gastrointestinal tract. The neoplasms arose in 10 women and 8 men ranging in age from 23 to 81 years (mean: 50; median: 57.5 years). The tumors for which size was known ranged from 1.8 to 15.0 cm (mean: 5.2; median: 5.1 cm). Microscopically, 14 synovial sarcomas were of the monophasic type, 2 were biphasic, and 2 were poorly differentiated. Immunohistochemical analysis of 4 cases showed strong, diffuse staining for SS18::SSX (4/4 cases). Pancytokeratin and EMA immunohistochemistry were performed on 13 and 9 tumors, respectively, and each showed patchy-to-diffuse staining. By reverse-transcription PCR, 3 cases were positive for the SS18::SSX1, and 2 cases were positive for the SS18::SSX2 gene fusion. Six cases contained an SS18 gene rearrangement by fluorescence in situ hybridization, and next-generation sequencing identified an SS18::SSX2 gene fusion in one case. Clinical follow-up information was available for 9 patients (4 months to 4.6 years; mean, 2.8 y; median: 29 months), and one patient had a recent diagnosis. Three patients died of disease within 41 to 72 months (mean, 56 months) of their diagnosis. Five patients were alive without evidence of disease 4 to 52 months (mean, 17.6 months) after surgery; of whom 1 of the patients received additional chemotherapy treatment after surgery because of recurrence of the disease. A single patient was alive with intraabdominal recurrence 13 months after surgery. We conclude that synovial sarcoma of the gastrointestinal tract is an aggressive tumor, similar to its soft tissue counterpart, with adverse patient outcomes. It is important to distinguish it from morphologically similar gastrointestinal tract lesions that may have different treatment regimens and prognoses | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a SS18::SSX | |
| 650 | 4 | |a differential diagnosis of gastrointestinal stromal tumor | |
| 650 | 4 | |a synovial sarcoma | |
| 650 | 7 | |a Biomarkers, Tumor |2 NLM | |
| 650 | 7 | |a Proto-Oncogene Proteins |2 NLM | |
| 650 | 7 | |a Oncogene Proteins, Fusion |2 NLM | |
| 700 | 1 | |a Longacre, Teri A |e verfasserin |4 aut | |
| 700 | 1 | |a Rosenberg, Andrew E |e verfasserin |4 aut | |
| 700 | 1 | |a Velez Torres, Jaylou M |e verfasserin |4 aut | |
| 700 | 1 | |a Yanchenko, Natalia |e verfasserin |4 aut | |
| 700 | 1 | |a Garcia-Buitrago, Monica T |e verfasserin |4 aut | |
| 700 | 1 | |a Voltaggio, Lysandra |e verfasserin |4 aut | |
| 700 | 1 | |a Montgomery, Elizabeth A |e verfasserin |4 aut | |
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