Abstract
Cutaneous manifestations of POEMS (polyneuropathy, organomegaly, endocrinopathies, M-protein, and skin changes) syndrome in a 51-year-old white man included two types of hemangiomas, ie, cherry-type and subcutaneous hemangiomas. By light microscopy and immunohistochemistry, both types of tumors showed features of capillary hemangiomas. By electron microscopy, a peculiar finding of subcutaneous hemangiomas was the presence of slender abluminal processes of endothelial cells that were frequently anastomosing to form electron-lucent blebs. Although the precise etiopathogenesis of the vascular proliferations remains speculative, these lesions merit study since they constitute an easily recognizable marker of POEMS syndrome.
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