Task: Answer Verification
Input (English): Question: Does hyperintense cortical signal on magnetic resonance imaging reflect focal leukocortical encephalitis and seizure risk in progressive multifocal leukoencephalopathy?
Answer: Seizures are a frequent complication in PML. HCS is associated with seizures and IRIS, and correlates histologically with JCV focal leukocortical encephalitis.
Output (English): yes