Spontaneous rupture of the left common iliac vein.

A 63-year-old woman was admitted because she presented with acute lower abdominal pain and left leg pain without any history of trauma. Lower extremity venous duplex ultrasound demonstrated deep vein thrombosis in the left lower extremity. Computed tomography scan revealed high-density, irregular clumps in the pelvic region and a soft-tissue mass shadow in the right lower abdomen. Emergency laparotomy revealed a 1.5-cm longitudinal tear in the left common iliac vein. The vein was repaired primarily and the postoperative course was uneventful.