External jugular vein hemangioma occurring as a lateral neck mass.

Hemangioma is an extremely frequent tumor, accounting for 7% of all benign neoplasms. In contrast, hemangioma arising in blood vessels is rare and should be differentiated from other neoplasms of vascular origin, such as hemangioendothelioma, hemangiopericytoma, hemangiosarcoma, and leiomyosarcoma. The case we report has the peculiarity of occurring as a lateral neck mass in which color-coded duplex sonography contributed significantly to diagnosis.