Optic perineuritis associated with antineutrophil cytoplasmic autoantibody-related hypertrophic pachymeningitis: a case report

Hypertrophic pachymeningitis is an inflammatory disease that causes various neural symptoms, including headache and cranial neuropathy, presenting as pachymeningeal hypertrophy with contrast enhancement on imaging. The cause of this disease is classified as idiopathic, in which the underlying disease is unknown, and is associated with autoimmunity, such as antineutrophil cytoplasmic autoantibody (ANCA)-related vasculitis, IgG4-related disease...