<prompt> What is the least common cause of seizures in AIDS patients?ToxoplasmosisCerebral lymphomaProgressive multifocal leukoencephalopathyCryptococcal meningitis  <response>: Most common causes of seizures in AIDS patients are cerebral toxoplasmosis40, primary CNS lymphoma15 - 35, cryptococcal meningitis8 and HIV encephalopathy7 -50. Seizures can also be caused by less common causes such as CNS tuberculosis, aseptic meningitis and progressive multifocal leukoencephalopathy. 