Neurosyphilis presenting as pure cerebellar ataxia: an atypical manifestation.

Neurosyphilis has become an uncommon diagnosis in the current era. Neurological manifestations of syphilis usually lie within the spectrum of meningovascular syphilis, tabes dorsalis or general paresis of the insane. Although sensory ataxia may occur as part of spinal cord involvement, cerebellar ataxia has been rarely described as a manifestation of neurosyphilis. In this report, we describe a rare case neurosyphilis presenting in the form of a pure pancerebellar syndrome of subacute progression.