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A 78-year-old woman was brought to the Emergency Department with sudden onset of a
painful swollen mass in the right abdominal wall. She had chronic atrial fibrillation
and a history of acute arterial occlusion of the right lower leg and underwent catheter
embolectomy 3 years prior to this incident. She was maintained on warfarin therapy
postoperatively. On examination, a 15 × 10-cm tender ecchymotic mass was detected
in the right lower quadrant of the abdomen. The laboratory test revealed anemia (Hb
9.9 g/dL) and prolonged prothrombin time (INR prolonged to 3.3). A computed tomography
(CT) scan of the abdomen showed a huge hematoma with a “fluid-fluid” level in it (Figure 1). Because of persistent pain and failed needle aspiration, surgical decompression was
performed after correcting the prothrombin time. The postoperative course was uneventful,
and she was discharged 7 days after operation.
Figure 1Abdominal CT scan demonstrating a huge hematoma in the right abdominal wall. The arrow
points to the fluid level in the hematoma.