Neuropathologic findings in a Guillain–Barré patient with strokes after IVIg therapy

Abstract
Strokes have been rarely associated with immunoglobulin G (IVIg) therapy. A 70-year-old woman with stable polycythemia vera developed Guillain–Barré syndrome and received IVIg, 8 days following which she became comatose due to bilaterally symmetric cerebral infarcts. Autopsy showed intravascular aggregates of fibrin-IgG but also platelets and a necrotizing microangiopathy in the infarcts.