Abstract
A case of posterior mediastinal cavernous hemangioma in a 74-year-old man is reported. He was admitted to our hospital for treatment of a thoraco-abdominal aortic aneurysm. Chest X-ray and CT revealed a huge mass in his right chest, which pushed down the liver and forced the heart to the left side. The tumor was resected en bloc without any organ resection. The resected specimen was a mediastinal cavernous hemangioma, weighing 1, 980 g and of 15×15×13 cm in size. This was the high old age case, and the tumor was the largest in size and weight of all the reported cases in Japan. Two months after the first operation, he was treated for an aortic arch aneurysm.
