title: Synovial sarcoma of the buttocks presenting with a non-healing wound and rapid progression after local resection: a case report.
abstract: Synovial sarcoma is a malignant mesenchymal neoplasm that is frequently misdiagnosed as a benign condition because of its small size, slow growth, and well-delineated appearance. Rapid spread and early death occur rarely. Here we report a case of synovial sarcoma of the buttocks presenting with a non-healing wound and rapid progression after local resection in a 23-year-old woman. She initially found a slightly painful subcutaneous mass in the left buttock and underwent local excision. Postoperatively, she developed a non-healing wound that did not respond to conventional antibiotic therapy and local wound care, and pitting edema of the lower extremities. A magnetic resonance imaging scan revealed a large heterogeneous, irregular mass in the buttocks with regional lymph node involvement. Histological and immunohistochemical analyses suggested the diagnosis of a poorly differentiated synovial sarcoma. Her condition deteriorated dramatically shortly thereafter; she developed systemic edema and died of respiratory failure. This case suggests that synovial sarcoma may be fatal within months of recognition if improperly managed and stresses the importance of adequate pre-surgical evaluation and postoperative pathological analysis in the management of a subcutaneous mass.
authors: Department of Gastrointestinal Surgery, China-Japan Union Hospital (The Third Clinical Hospital), Norman Bethune College of Medicine, Jilin University, Changchun, China.
authors: Hai-Yan
authors: HY
authors: Zhang
authors: Ye
authors: Y
authors: Feng
authors: Zhuo
authors: Z
authors: Zhang
authors: Ge
authors: G
authors: Gao
authors: Ji-Sheng
authors: JS
authors: Zhao
mesh_terms: D000328:Adult; D002081:Buttocks / Q000473:pathology* / Q000601:surgery*; D018450:Disease Progression; D017809:Fatal Outcome; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D011183:Postoperative Complications; D013584:Sarcoma, Synovial / Q000209:etiology* / Q000473:pathology* / Q000601:surgery; D013529:Surgical Wound Dehiscence; D014945:Wound Healing; D055815:Young Adult