Introduction Granulomatosis with polyangiitis (GPA), formerly Wegener's, is characterized by necrotizing granulomatous inflammation affecting the respiratory tract, with necrotizing vasculitis in small to medium vessels [1]. It is an ANCA-associated vasculitis, with upper respiratory tract involvement in 70-100% of cases [2]. Otolaryngologists, often the first consulted specialists, need a thorough understanding of GPA's clinical presentation for timely diagnosis.
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Rieger et al. (2024) studied this question.
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