Granulomatosis with polyangiitis in Northeastern Brazil: study of 25 cases and review of the literature

Abstract Background: Little has been published about the epidemiology of Granulomatosis with polyangiitis (GPA) in South America, especially in the intertropical zone, and no epidemiological data from Brazil are available. The purpose of the present study was to draw a clinical and demographic profile of GPA patients living in Northeastern Brazil based on laboratory, histological and imaging findings, and evaluate the frequency of organic involvement. Methods: Clinical, epidemiological and treatment data of GPA patients were collected retrospectively and compared with the literature. Result...