Intravascular papillary endothelial hyperplasia

Intravascular papillary endothelial hyperplasia is a rare, benign tumor. It may mimic an angiosarcoma, with lesions that are red or purplish 5-mm to 5-cm papules and deep nodules on the head, neck, or upper extremities.:592 Intravascular papillary endothelial hyperplasia is a rare, benign tumor. It may mimic an angiosarcoma, with lesions that are red or purplish 5-mm to 5-cm papules and deep nodules on the head, neck, or upper extremities.:592