We report our clinical experiences in the diagnosis and treatment of a patient with synovial hemangioma. Synovial hemangiomas are uncommon causes of recurrent, nonspecific joint complaints and occur most often at the knee joint. Non traumatic joint swelling combined with recurrent hemorrhagic joint effusions must be considered signs of a synovial hemangioma. Although no preoperative diagnostic tool enables confirmation of the diagnosis, and MRI seems to be the diagnostic investigation of choice. It is important for the clinician to be aware of the existence of this disease. Early surgical treatment with excision of the tumor with wide margins of non involved normal synovium is the therapy of choice and it avoids degenerative changes as demonstrated with the case reported here.
