[Adrenocortical carcinoma detected by retroperitoneal hemorrhage : a case report].

Spontaneous massive retroperitoneal hemorrhage from an adrenal tumor is rare and is usually fatal if unrecognized. We report a case of spontaneous rupture of a primary adrenocortical carcinoma that occurred in a 79-year-old man. He visited our hospital with left abdominal pain. Computed tomography (CT) showed a left retroperitoneal hemorrhage. We could not find the origin of this hemorrhage. Two months later, CT showed the left adrenal tumor, and left adrenalectomy and nephrectomy were performed successfully. The histological diagnosis was adrenocortical carcinoma. He rejected adjuvant therapy. Local recurrence of the tumor was found, and right adrenal gland, brain, and mediastinal lymph node metastases were recognized 6 months after the operation. He died 11 months after the operation.