A case report of hemangioendothelioma of the hard palate.

Hemangioendothelioma is a rare vascular tumour with potential for malignancy that is intermediate between that of a benign hemangioma and a malignant angiosarcoma. This tumour occurs infrequently in the head and neck regions. In this report, we describe and discuss a case of hemangioendothelioma that originated in the hard palate of a 49-year-old woman.