Pheocromocytoma and gastrointestinal bleeding

Abstract

A 46-year-old patient who presented with an abdominal mass and gastrointestinal bleeding associated with an extra-adrenal pheochromocytoma is discussed. He had no history of hypertension. An ill-defined mass was felt at the upper abdomen. CT and arteriography confirmed the presence of a large mass with calcifications in the right paravertebral region. Upper endoscopy revealed multiple varices at the third portion of the duodenum. Abdominal exploration revealed a huge tumor at the root of the small bowel mesentery with multiple arterial and venous vessels entering the third portions of the duodenum. The tumor was unresectable. Biopsy demonstrated a pheochromocytoma. The patient developed pulmonary edema in the immediate postoperative course. He recovered and was discharged home on Dibenzyline. He has been readmitted on various occasions with gastrointestinal bleeding and congestive heart failure. Presently he is working and feels relatively well 5 years after the operation. A review of the literature for gastrointestinal complications of pheochromocytomas was done. There is a scarcity of reports of gastrointestinal bleeding associated with pheochromocytomas.