Epithelioid Hemangioendothelioma of the Mastoid Bone with Extension of Middle Cranial Fossa: A Case Report.

Epithelioid hemangioendothelioma (EHE) is a rare sarcoma of vascular origin. It is frequently seen in the liver, lungs and bones. Cases with mastoid bone and intracranial extension are rarer. A 40 year old male, presented with a history of progressive headaches and a mass in the postauricular region for a duration of three months. Computer tomography of the temporal bone showed an approximately 40 × 30 mm soft tissue with osteolytic bony changes located in the mastoid bone. Epithelioid hemangioendothelioma is a rare sarcoma of vascular origin. Surgery is the first line of therapy. Prognosis is generally good, and may be better for primary intracranial disease than that for EHE originating elsewhere.