No abstract

No abstract

An 18-year-old female visited our hospital with a complaint of a tumor in the left hypogastric region. Computed tomography revealed a tumor extending from the second lumbar vertebra to the pelvic cavity. Angiography delineated an abnormal blood vessel branching from the left iliac artery and the lumbar artery. The patient underwent surgery with the diagnosis of retroperitoneal tumor. The tumor was the size of an infant's head, multilocular and full of pale yellow serous fluid and clots. Histiologically it was diagnosed as malignant hemangiopericytoma. Two weeks later the patient developed multiple metastases in the bilaterel lung and lumbar vertebrae, and at present, 14 months after operation, she is under combined treatment. Hemangiopericytoma is relatively uncommon, with 223 cases having been reported in Japan. Only 21 of the 223 cases were of retroperitoneal origin. The averageage of patients is 36 years, and the male/female ratio is 9:12. Malignant tumor was found in 11 of 12 cases in which malignancy could be evaluated, and six cases presented matastase. In spirt of combined treatment, the prognosis is poor, with no patients surviving more than 2 years.In the present report the authors describe a surgically treated case of malignant hemangiopericytoma occupy in the retroperitoneum.

No abstract