title: Peroneal nerve involvement as initial manifestation of primary systemic vasculitis.
abstract: We report a case of two patients with foot drop due to peroneal nerve infarct as early sign of two different forms of primary systemic vasculitides: a predominantly small-vessel p-antineutrophil cytoplasmic antibody-positive vasculitis (microscopic polyangiitis) and a predominantly medium-vessel vasculitis (polyarteritis nodosa).
authors.affiliation: Department of Neurology, University of Turin, AOU maggiore della Carità, Novara, Italy.
authors.forename: Paolo
authors.initials: P
authors.lastname: Ripellino
authors.forename: Claudia
authors.initials: C
authors.lastname: Varrasi
authors.forename: Elena
authors.initials: E
authors.lastname: Maldi
authors.forename: Roberto
authors.initials: R
authors.lastname: Cantello
mesh_terms: D056648:Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis / Q000150:complications / Q000175:diagnosis*; D020233:Gait Disorders, Neurologic / Q000209:etiology*; D006801:Humans; D007238:Infarction / Q000150:complications*; D008297:Male; D008875:Middle Aged; D010523:Peripheral Nervous System Diseases / Q000209:etiology*; D010543:Peroneal Nerve / Q000098:blood supply*; D010488:Polyarteritis Nodosa / Q000150:complications / Q000175:diagnosis*