Heidenhain Variant of Creutzfeldt-Jakob Disease: A Case Report.

Creutzfeldt-Jakob disease (CJD) is a rare, rapidly progressive, fatal neurodegenerative disorder caused by an accumulation of protein-containing particles called prions in the central nervous system. The Heidenhain variant (HvCJD) is a rare subtype of CJD that presents with predominantly visual symptoms at onset. The patient presented in this case had several weeks of visual symptoms prior to hospital admission.

Pupil-sparing third nerve palsies and hemiataxia: Claude's and reverse Claude's syndrome.

We report two patients with midbrain infarction with pupil-sparing third nerve palsies and hemiataxia: one with contralateral ataxia (Claude's syndrome) and one with ipsilateral ataxia (which we refer to as reverse Claude's syndrome). We highlight the importance of a thorough neurologic evaluation with partial oculomotor palsies and describe, to our knowledge, the fourth account in the literature of a pupil-sparing third nerve palsy with ipsilateral cerebellar ataxia.