ABSTRACT
Although bleeding is a major complication of oral anticoagulant therapy, warfarin-induced spontaneous intramural hematoma of the small bowel is a very rare complication. The clinical features of spontaneous intramural hematoma vary from mild abdominal pain to panperitonitis due to bowel perforation. Because spontaneous intramural hematoma can proceed to a life threatening situation, early diagnosis is of vital importance. Although there are a number of radiologic diagnostic tools available including abdominal ultrasonography and computed tomography, confirmation of the diagnosis through direct visualization of the involved bowel mucosa is very helpful. Direct confirmation of warfarin-induced spontaneous intramural hematoma of the small bowel is possible using double-balloon enteroscopy. We report a case of warfarin-induced spontaneous intramural hematoma with a review of the relevant literature.