Intravascular papillary endothelial hyperplasia (Masson's tumor) should be considered in the differential diagnosis of a progressive hand mass following contusion injury.
These IPEH cases underscore histopathologic confirmation; leaves open standardized management in larger cohorts.
Intravascular papillary endothelial hyperplasia (IPEH), also known as Masson's tumor or vegetant intravascular hemangioendothelioma, is a reactive condition representing an exuberant organization and recanalization of a thrombus. It can occur in normal blood vessels or in vascular malformations, perhaps in 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 18 year-old man, who had a progressive protruding hand mass following a hand contusion. The pathological examination confirmed the diagnosis of IPEH in both patients.
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Wang et al. (2018) studied this question.
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