Synovial hemangioma of the knee

Synovial Hemangioma in a Dog

“…We are aware of 1 report of synovial hemangioma in a dog suggesting that this tumor type be included in the differential diagnosis for canine synovial tumors 4 . In humans, synovial hemangioma is a rare benign vascular tumor usually affecting children and most commonly involving the knee 5–10 …”

“…Diagnosis of axial skeletal and articular tumors is often based on clinical findings, diagnostic imaging, cytology, synovial fluid characteristics, and histopathology. In humans, knee arthroscopy allows minimal invasive evaluation and treatment of synovial hemangioma 8–10 . We report use of diagnostic arthroscopy and arthrotomy for surgical resection of a synovial hemangioma in the stifle joint of a dog.…”

Synovial Hemangioma of the Knee

“…Several earlier reports confi rm the ease with which these tumors are missed and how it can alter prognosis. 1 These lesions have always been radiographically assessed with MRI, 11 but the use of fl ow Doppler studies in conjunction with MRI is advocated, as the Doppler studies can accurately demonstrate the vascular fl ow in the tumor preoperatively and act as useful follow-up tools to demonstrate the lack or presence of recurrence postoperatively.…”

Benign Synovial Tumors and Proliferative Processes

“…1,43,54,55 Effusions seen in patients with synovial hemangioma often represent spontaneous hemarthrosis, a frequent complication of this vascular lesion. 38,56,57 Long-standing synovial hemangiomas may lead to arthropathy secondary to repeated bleeding episodes and/or mechanical irritation. 56 Quadriceps atrophy has also been reported in association with synovial hemangiomas.…”