what is gpa vasculitis
Does this patient have granulomatosis with polyangiitis (GPA)? Granulomatosis with polyangiitis (Wegener's) (GPA) is a rare disease characterized by the presence of granulomatous inflammation and necrotizing vasculitis involving small and medium sized vessels in various organs. 1  Patients with GPA can have a variety of presentations based on the organ involved and severity of involvement.