Synovial Hemangioma of the Temporomandibular Joint: Case Report.

Hemangiomas are benign vasoformative neoplasms or developmental conditions of endothelial origin. Synovial hemangiomas arise from a synovial lined surface within a joint space. This report describes a case of synovial hemangioma of the left temporomandibular joint (TMJ) in a 65-year-old male patient. Histologic examination confirmed the diagnosis of synovial hemangioma. This is a rare case series, as the only case of synovial hemangioma with TMJ localization previously described was reported in 1988.