Spontaneous intramural hematoma of the alimentary canal.

Spontaneous intramural hematoma of the alimentary canal has rarely been reported. We present two cases in which anticoagulation therapy brings spontaneous intramural hematoma of the alimentary canal. In one case, the lesion was located in the ileum, and the other was located in the ascending colon and distal ileum. Both patients were cured through conservative treatment. We suggest that increased attention should be paid if a patient has acute abdominal pain with a history of oral anticoagulant therapy, and the diagnosis of spontaneous intermural hematoma should be considered.