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Intraarticular synovial sarcoma of the knee rising from a lateral meniscus – a case report (CROSBI ID 265661)

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Bergovec, Marko ; Smerdelj, Miroslav ; Bacan, Filip ; Seiwerth, Sven ; Herceg, Davorin ; Prutki, Maja Intraarticular synovial sarcoma of the knee rising from a lateral meniscus – a case report // Orthopaedics & Traumatology-Surgery & Research, 104 (2018), 2; 227-230. doi: 10.1016/j.otsr.2018.01.002

Podaci o odgovornosti

Bergovec, Marko ; Smerdelj, Miroslav ; Bacan, Filip ; Seiwerth, Sven ; Herceg, Davorin ; Prutki, Maja

engleski

Intraarticular synovial sarcoma of the knee rising from a lateral meniscus – a case report

Synovial sarcoma (SS) is a rare mesenchymal tumor, accounting less than 10% of soft tissue sarcomas. We report a case of intraarticular SS mimicking nodular synovitis and lateral meniscus rupture. Due to clinical and radiological presentation, arthroscopic synovectomy was performed, and histology confirmed nodular synovitis. After four years the lesion recurred and new arthroscopic biopsy was performed, revealing a monophasic SS with SYT/SSX1 translocation. Repeated histology of the first specimen confirmed appearance of a nodular synovitis microscopically, with no morphological criteria for a sarcoma, but molecular analysis showed positive SYT/SSX1 translocation. Wide extraarticular knee resection and reconstruction with a tumor megaendoprosthesis-allograft composite was performed with a negative tumor margins. This case report showed that in a case of benign histological appearance, underlying sarcoma is possible and could be identified in early stages only with an advanced pathology methods.

Synovial sarcoma ; Diagnostic molecular pathology ; Arthroscopy ; Knee prosthesis

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Podaci o izdanju

104 (2)

2018.

227-230

objavljeno

1877-0568

10.1016/j.otsr.2018.01.002

Povezanost rada

Kliničke medicinske znanosti

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