title: Angiography of histopathologic variants of synovial sarcoma.
abstract: Synovial sarcomas are rare soft tissue tumors which histopathologically can be divided into monophasic, biphasic and mixed variants. As part of a protocol for intra-arterial chemotherapy 12 patients with biopsy proven synovial sarcoma underwent angiography. The angiograms on these patients were reviewed to determine whether synovial sarcomas and their variants demonstrated a characteristic angiographic appearance. Synovial sarcomas appeared angiographically as soft tissue masses which showed a fine network of tumor vessels with an inhomogeneous capillary blush. Their degree of vascularity varied according to their histopathology. Monophasic synovial sarcomas demonstrated in general a higher degree of neovascularity than the biphasic form. This finding was also suggested by histopathologic analysis of the vessels in the tumor. Although angiography did not show a distinctive vascular pattern it may be useful to evaluate tumor size and vascularity.
mesh_terms: D000293:Adolescent; D000328:Adult; D000792:Angiography; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013584:Sarcoma, Synovial / Q000098:blood supply* / Q000000981:diagnostic imaging; D012983:Soft Tissue Neoplasms / Q000098:blood supply* / Q000000981:diagnostic imaging