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One year in review 2020: Behçet's syndrome.

Behçet's syndrome is a variable vessel vasculitis with multi-system involvement that shows important heterogeneity among patients regarding demographic features, organ manifestations, frequency and severity of relapses, disease course, response to treatment and prognosis. This heterogeneity has made it difficult to interpret and compare the results of studies, to standardise disease assessment and to develop management strategies. Several new studies have been published during the previous year exploring the epidemiology, pathogenesis, clinical manifestations, diagnosis, and management of Behçet's syndrome. The aim of this review is to provide an overview of the most relevant recent research in Behçet's syndrome from a critical perspective.