Chi-Yu WANG, Chung-Chih HONG, Zheng-Yi HUANG, Chih-Hsin WANG

Intravascular papillary endothelial hyperplasia along the intrinsic muscle after hand contusion injury: Report of two cases

Intravascular papillary endothelial hyperplasia (IPEH), also known as Masson's tumor or vegetantintravascular hemangioendothelioma, is a reactive condition representing an exuberant organization andrecanalization of a thrombus. It can occur in normal blood vessels or in vascular malformations, perhapsin response to blood vessel injury or thrombosis.In this report, we present the diagnostic and therapeutic courses of a 55 year-old woman and an 18year-old man, who had a progressive protruding hand mass following a hand contusion. The pathologicalexamination confirmed the diagnosis of IPEH in both patients.

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