[Pheochromocytoma combined with malignant lymphoma and prostatic cancer--a case report].

A rare case of pheochromocytoma associated with a malignant lymphoma and a prostatic cancer is reported. An 80-year-old male had had his terminal ileum resected one year earlier due to a malignant lymphoma. A year later, postoperative follow-up study by ultrasound revealed a solitary retroperitoneal tumor. The resected tumor was found to be a pheochromocytoma, which had provoked intraoperatively an intractable hypertension and ventricular arrhythmia. One year following this, a urinary disturbance was noted. On examination, a hard and irregular prostata was palpate and a subsequent biopsy revealed an adenocarcinoma. As far as we have been able to ascertain after a perusal of the Japanese literature, we believe that this case represents the first reported case of such a malignant lymphoma, combined with prostatic cancer and a pheochromocytoma.