Deep venous thrombosis frequently results in unilateral lower limb edema. A synovial cyst in the hip joint may be a rare cause of this symptom and should be considered in the differential diagnosis. We report on a case in which color-flow Doppler ultrasonography showed presence of extrinsic compression of the external iliac vein. Magnetic resonance imaging showed a synovial cyst as etiologic factor, confirmed by surgical excision.
Synovial cyst; deep venous thrombosis
