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Gastric synovial sarcoma: the critical role of molecular techniques in diagnosis of an ultra-rare cancer
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DOI：10.1136/bcr-2025-267170.png)
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Abstract
En 中文
Gastric synovial sarcoma (GSS) is an exceptionally rare mesenchymal malignancy, with only 51 cases reported. We present a case of a man in his 50s with dyspeptic symptoms and epigastric pain. Gastroscopy revealed an ulcerous tumour below the gastro-oesophageal junction. Histology, immunohistochemistry and molecular analysis confirmed SS18::SSX1 fusion, diagnostic of synovial sarcoma. The patient underwent successful robot-assisted partial gastric resection with negative margins. No recurrence was noted at 6-month follow-up. This case underscores the diagnostic challenge of GSS, the critical role of molecular techniques and the efficacy of minimally invasive surgical management.
Keywords:
Gastrointestinal surgery
Surgical oncology
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