Successful Excision of Epithelioid Hemangioendothelioma of the Superior Vena Cava.

Epithelioid hemangioendothelioma is a rare, low-grade vascular tumor. Mediastinal localization is rare for epithelioid hemangioendothelioma. We report a case of a radically resected mediastinal EHE originating from the superior vena cava. A 79-year-old woman was referred to our hospital for colon cancer surgery. Computed tomography showed a 50-mm middle mediastinal tumor in direct contact with the left and right brachiocephalic veins, aortic arch, and right brachiocephalic artery. Right lateral thoracotomy was performed, and the tumor was resected en bloc with the right brachiocephalic vein and vagal nerve. Recurrence was not observed at 7 years after the operation, even without adjuvant therapy.