Intravascular papillary endothelial hyperplasia: An unusual histopathological entity

Abstract

Intravascular papillary endothelial hyperplasia (Masson′s tumor) is a benign lesion of the skin and subcutaneous tissue consisting of a reactive proliferation of endothelial cells with papillary formations related to a thrombus. It poses a diagnostic challenge as the clinical signs and symptoms are nonspecific and may mimic a soft tissue sarcoma. The diagnosis is based on histopathology. Here we report two cases of Masson′s hemangioma occurring on the upper lip and on the left hand.

Keywords

• Hemangioma
• intravascular papillary endothelial hyperplasia
• thrombus