Abstract
A 67-year-old man was admitted to hospital because of a right upper abdominal pain. A fist-sized induration withtenderness was noted. Ultrasonography and computed tomography revealed an abscess in the abdominal wall. Percutaneousdrainage was performed, and a fistelography showed an abscess cavity/transverse colon fistula. Endoscopicexamination showed a small ulcer; histological examination revealed no signs of malignancy. An operation wasperformed, and a small induration of the transverse colon fixed to the right upper abdominal wall was observed. Apartial transverse colectomy and partial resection of the abscess wall were subsequently performed. Histologicalexamination showed a simple ulcer of the colon. Most cases of abdominal wall abscesses with digestive tract fistulasrequire surgical treatment. Although rare, the main etiologies of these lesions are malignant disease, such as coloncancer, or inflammatory disease, such as appendicitis. Here, we report a rare case of a simple ulcer in the transversecolon that was complicated by an abdominal wall abscess.