The most common organism amongst the following that causes acute meningitis in an AIDS patients is?

Ans. is 'c' i.e., Cryptococcus neoformans Neurological manifestations . Frequent oppounistic diseases of CNS are ? - Toxoplasmosis (most common cause of CNS infection in AIDS patients) - Cryptococcosis - Primary CNS lymphoma - Progressive multifocal leukoencephalopathy. . AIDS dementia complex (HIV encephalopathy) is a result of direct effects of HIV on CNS (not an oppounistic disease). It is subcoical dementia. . Most common cause of seizures --> Toxoplasma . Most common cause of meningitis --> Cryptococcus . M.C. cause of focal neurological deficit --> Toxoplasma