This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Seizures and Epilepsy, Subject name: Medicine
Least common cause of seizures in AIDS patient is? 
Select and explain. 
A. Toxoplasmosis, B. Cerebral lymphoma, C. Progressive multifocal leukoencephalopathy, D. Cryptococcal meningitis
C: Progressive multifocal leukoencephalopathy
Answer: C: Progressive multifocal leukoencephalopathy 
Explanation: ANSWER: (C) Progressive multifocal leukoencephalopathyREF: Harrisons Internal Medicine 17th edition chapter 182 Table 182-13Causes of Seizures in Patients with HIV InfectionDiseaseOverall Contribution to First Seizure, %HIV encephalopathy24-47Cerebral toxoplasmosis28Cryptococcal meningitis13Primary central nervous system lymphoma4Progressive multifocal leukoencephalopathy1