Snapshot A 38-year-old man is brought to the emergency department by his brother due to "abnormal behavior." The brother reports that the patient has been constantly putting objects in his mouth. The patient has also made sexually inappropriate remarks to his sister-in-law. The patient's brother believes that the patient is depressed since he did not show any emotion after his mother's death. The brother denies he had any head trauma but does recall that approximately 3 months ago he was hospitalized for herpes encephalitis that was treated late. Introduction Clinical syndrome login to view 1 more bullet Etiology login to view 10 more bullets Presentation Symptoms login to view 7 more bullets