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Figure 1. Left flank pain and hypotension developed in a 62-year-old woman during treatment with intravenous heparin (900 U per hour) and warfarin (7.5 mg per day) for deep venous thrombosis. Coagulation studies showed a prothrombin time of 15.5 seconds, an international normalized ratio of 1.29, a partial-thromboplastin time of 102 seconds, and a platelet count of 132,000 per cubic millimeter. Computed tomography showed a large, mixed-density mass in the left side of the abdomen suggestive of a large retroperitoneal hematoma (Panel A), with an area of hyperdensity (arrow) indicating ongoing hemorrhage. The patient's hematocrit continued to fall despite . . . [Full Text of this Article] |