Abstract
Intravascular papillary endothelial hyperplasia is an intravascular lesion characterized by the papillary proliferation of endothelial cells, and is rarely seen in the oral region. We present a case of intravascular papillary endothelial hyperplasia in a 21-year-old man. Physical examination revealed an elastic and slightly hard, dark purple swelling, measuring 8×7mm, on the left side of the dorsum of the tongue, and resection was performed under the clinical diagnosis of hemangioma. Postoperative pathological examination revealed papillary proliferation of endothelial cells close to the thrombus in a large single blood vessel. Based on these findings, the case was diagnosed as a pure form of intravascular papillary endothelial hyperplasia. The postoperative course was uneventful without recurrence for four years.
