This second part of our review about vascular proliferations summarizes the clinicopathologic features of the cutaneous @entity455 and @entity5 . @entity1373 comprise a heterogeneous group of vascular proliferations that eventually show a tendency to regression. @entity5072 with @entity1712 is included within the group of @entity1373 because of its historical denomination and its reactive nature, probably as a consequence of an arteriovenous shunt, although usually the lesions do not regress. @entity2276 , @entity37153 , @entity1377 , and @entity2826 qualify as @entity455 because they regress when the stimulus that initiated them is removed. @entity5 form a large group of @entity2695 with distinctive clinicopathologic characteristics, although some of them are of recent description and may produce diagnostic difficulties. We classified @entity1350 according to their cell lineage of differentiation, for example, endothelial, glomus cell, and pericytic differentiation. Subsequent categories are established according to the size of the involved vessels (capillaries, venules and arterioles, or veins and arteries) or the nature of the proliferating vessels (blood or lymphatic vessels). Capillary and @entity2477 have been the terms classically used to name the most common variants of @entity1350 (i.e., @entity7492 ), but they are not the most appropriate denominations for these lesions. First, these names are not contrasting terms. Furthermore, most of the socalled "cavernous" @entity2695 are @entity2695 ( @entity5 ) at all, but @entity1211 . The most important conceptual issue is that, at any point in time, a particular @entity2695 has its own histopathologic pattern throughout the depth of the lesion. For these reasons, we classified @entity2695 into superficial and deep categories. Some of the lesions reviewed have been recently described in the literature, and they may histopathologically mimic lesions of @entity2826 ; these include @entity2695 , @entity2695 , @entity2695 , @entity2695 , @entity24428 , @entity189 , and @entity2696 . In each of these lesions, we update and emphasize those clinical and histopathologic features that are helpful for differential diagnosis with lesions of authentic @entity2826 in any of its three stages of development (patch, plaque, or nodule).

XXXX . Part II. @entity5 .

@entity1712 :: ('MESH:D004802', 'Disease') :: ['eosinophilia'] @entity1377 :: ('MESH:D002291', 'Disease') :: ['intravascular papillary endothelial hyperplasia'] @entity2826 :: ('MESH:D012514', 'Disease') :: ["Kaposi's sarcoma", "pseudo-Kaposi's sarcoma"] @entity455 :: ('MESH:D014652', 'Disease') :: ['vascular hyperplasias'] @entity24428 :: ('MESH:C537007', 'Disease') :: ['kaposiform hemangioendothelioma'] @entity2695 :: ('MESH:D006391', 'Disease') :: ['hemangioma', 'not hemangiomas', 'tufted hemangioma', 'hemangiomas', 'microvenular hemangioma', 'glomeruloid hemangioma', 'targetoid hemosiderotic hemangioma'] @entity5 :: ('MESH:D009369', 'Disease') :: ['neoplasms', 'benign neoplasms', 'Benign neoplasms'] @entity7492 :: ('MESH:C535860', 'Disease') :: ['infantile hemangiomas'] @entity1373 :: ('MESH:D006965', 'Disease') :: ['hyperplasias', 'Hyperplasias'] @entity5072 :: ('MESH:D000796', 'Disease') :: ['Angiolymphoid hyperplasia'] @entity189 :: ('MESH:D002277', 'Disease') :: ['spindle-cell hemangioendothelioma'] @entity1350 :: ('MESH:D019043', 'Disease') :: ['benign vascular neoplasms', 'cutaneous benign vascular neoplasms'] @entity2696 :: ('MESH:D008202', 'Disease') :: ['benign lymphangioendothelioma'] @entity37153 :: ('MESH:D016917', 'Disease') :: ['bacillary angiomatosis'] @entity2477 :: ('MESH:D006392', 'Disease') :: ['cavernous hemangiomas'] @entity2276 :: ('MESH:D017789', 'Disease') :: ['Pyogenic granuloma'] @entity1211 :: ('MESH:D054556', 'Disease') :: ['venous malformations']
@entity455 :: (MESH:D014652,Disease) :: ['Cutaneous vascular proliferation']
