Snapshot A 21-year old senior college student is referred by his academic advisor to the student health clinic due to reports of increasingly bizarre behavior over the course of the last semester. His roommate reported that he often does not leave his room for weeks at a time because he is obsessed with the voices in his head that tell him to continue searching the internet for hidden alien messages. He adamantly believes that he is the only one on the planet with this special ability. He is paranoid that the FBI will discover his secret and is attempting to prevent him from receiving these messages. A consulting psychiatrist admits the patient to the psychiatry ward. The patient is started on a low dose of risperidone. Introduction Overview login to view 1 more bullet Epidemiology Prevalence login to view 2 more bullets Demographics login to view 3 more bullets Risk factors login to view 1 more bullet ETIOLOGY Pathophysiology login to view 3 more bullets Associated conditions login to view 12 more bullets Presentation Symptoms login to view 11 more bullets Physical exam login to view 8 more bullets Studies Urine toxicology login to view 1 more bullet Serum labs login to view 4 more bullets Differential Delusional disorder login to view 3 more bullets Schizotypal personality disorder login to view 2 more bullets Schizoid personality disorder login to view 3 more bullets Paranoid personality disorder login to view 3 more bullets Treatment Lifestyle login to view 2 more bullets Medical login to view 16 more bullets Complications Substance use login to view 6 more bullets Suicide login to view 7 more bullets Prognosis Full recovery is rare Factors associated with poor prognosis: login to view 3 more bullets