A case of neurosarcoidosis presenting with multiple cranial nerve palsy.

Sarcoidosis is a multisystem disease with neurological involvement seen in only 5% of patients. Cranial neuropathy is a common mode of presentation. Out of the cranial nerves, seventh cranial nerve either unilateral or bilateral, is usually involved though sarcoidal lesions may implicate every cranial nerve. Other cranial nerves, commonly involved are optic, sensory component of trigeminal and eighth nerves. Symptomatic or asymptomatic basal meningitis or its sequel is the second most common CNS manifestation and it may lead to hydrocephalus, cranial nerve involvement, stroke due to vasculitis, ependymitis, encephalopathy, intracranial granuloma, hypothalamic and pituitary dysfunction. Here we are presenting a rare case where CNS manifestation was predominantly in the form of multiple cranial nerve involvement due to aseptic meningitis, along with lung parenchymal involvement.