PSP-Pure akinesia with gait freezing (PSP-PAGF) is an atypical variant of progressive supranuclear palsy (PSP; see this term), a rare late-onset neurodegenerative disease. The disease is Orphanet rare-disease nomenclature entry Orphanet_240094 (Progressive supranuclear palsy - pure akinesia with gait freezing). Also known as: PSP-PAGF, PSP-pure akinesia with gait freezing.