MPO and axonal neuropathy: Laboratory tests revealed marked eosinophilia and strongly positive myeloperoxidase (MPO)-ANCA, while electrophysiological studies demonstrated asymmetric axonal neuropathy. A multidisciplinary assessment by neurology and rheumatology confirmed the diagnosis of EGPA with vasculitic neuropathy, following which treatment with corticosteroids, cyclophosphamide, plasmapheresis, and rituximab resulted in significant clinical improvement.