Сutaneous vasculitis: classification, diagnosis and differential diagnosis (part 1)

Cutaneous vasculitis is a heterogeneous group of diseases caused by inflammation of the blood vessel wall of the skin. The variety of cutaneous vasculitis, their clinical similarity, lack of clear diagnostic criteria and common terminology cause an extremely complex process of diagnosis of this group of diseases. A dermatologist is often the first specialist to diagnose vasculitis. Currently there is no single "monodisciplinary" classification of v ascular damage, there is no generally accepted terminology and classification of cutaneous vasculitis. In domestic dermatovenerology, vasculitis is classified according to the morphological elements of the skin rash, and not by etiology and pathogenesis. This makes it difficult for different specialists to understand the diagnosis and maintain continuity in the management of patients. The article presents the nomenclature of vasculitis of the 2012 revised international Chapel Hill consensus conference nomenclature of vasculitides, supplemented by organ-specific cutaneous vasculitis, describes the pathomorphological and clinical manifestations of this group of dermatoses, summarizes information about modern treatment tactics.