Hypersensitivity vasculitis

Neurologic involvement is not a prominent feature of this group of vasculitides, which include:

● drug-induced allergic vasculitis:

A number of drugs are associated with the development of cerebral vasculitis. These include methamphetamines (“speed”), cocaine (frank vasculitis occurs ¹⁾ but is rare), heroin, and ephedrine

● cutaneous vasculitis

● serum sickness: may → encephalopathy, seizures, coma, peripheral neuropathy, and brachial plexopathy

● Henoch-Schönlein purpura