Sporadic Hemiplegic Migraine: Hypoperfusion Demonstrated by Susceptibility-Weighted Magnetic Resonance Imaging and Computed Tomography Perfusion Study

Abstract

Hemiplegic migraine (HM) is a rare subtype of migraine with aura, characterized by the gradual progression of varying degrees of hemiparesis (motor aura) or other neurological deficits. HM has two forms: familial and sporadic. Sporadic HM (SHM) is defined as HM without a family history of similar episodes. Abnormalities in cerebral perfusion have been suggested as a potential cause of encephalopathy and hemiplegia in both SHM and familial HM (FHM).