[Synovial sarcoma localized in the muscles]
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Updated: Oct 28, 2026

Identifying, Diagnosing, and Grading Malignant Peripheral Nerve Sheath Tumors in Genetically Engineered Mouse Models
Published on: May 17, 2024
D Galy-Fourcade1, J J Railhac, N Sans
1Service de Radiologie Centrale, Centre Hospitalier Universtaire de Toulouse Purpan.
Abstract:
We report three cases of synovial sarcoma strictly located in the muscles. Synovial sarcoma generally arises in the vicinity of joints, tendon sheaths, bursae, fascia, and ligaments. Strictly intramuscular locations are not well known and not described in the literature to our knowledge although they seem to be frequent. The different characteristics on the radiographic examinations are non specific, and this location may be misleading. MRI is considered the procedure of choice for staging this tumor and to visualize soft tissues and bone invasion. CT scans may be useful in detecting more specific small calcifications.
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