A Case of Epithelioid Hemangioendothelioma of the External Auditory Canal / 대한이비인후과학회지

Epithelioid hemangioendothelioma is a vascular tumor of endothelial origin that commonly occurs in the deep soft tissue, bone, lung and liver. This vascular tumor rarely occurs within the external auditory canal (EAC). Epithelioid hemangioendothelioma has a biologic behavior that is an intermediate between a hemangioma and an angiosarcoma. Here, we present a case of 57-year-old female patient with an epithelioid hemangioendothelioma in her EAC. She underwent tympanomastoidectomy and histopathological examination revealed an epithelioid hemangioendothelioma.