Aortitis and pachymeningitis: an unusual combination in granulomatosis with polyangiitis (myeloperoxidase-associated vasculitis).

Aortitis and pachymeningitis are uncommon manifestations of the antineutrophil cytoplasmic antibody-associated vasculitides, a group of systemic autoimmune diseases mainly affecting small vessels. We present a case of a 71-year-old woman with a remote history of idiopathic chronic granulomatous pachymeningitis complicated with aortic thickening due to autoimmune aortitis.