disorder most commonly associated with hypertension, toxemia of pregnancy, or the use of
immunosuppressive agents. Its clinical features include headache, decreased alertness,
mental abnormalities, such as confusion, diminished spontaneity of speech, changed
behavior ranging from drowsiness to stupor, seizures, vomiting, and abnormalities of visual
perception like cortical blindness. Magnetic resonance imaging shows edematous lesions …