Differential Diagnosis of First Break Psychosis

  • Affective Disorders
    • Depression with psychotic features
    • Bipolar affective disorder
  • Psychotic Disorders
    • Brief reactive psychosis (arise in response to major stress, quick recovery)
    • Schizophreniform (< 6 mo)
    • Schizophrenia (> 6 mo)
    • Schizoaffective disorder (concurrent or consecutive symptoms of both)
    • Drug-induced psychosis (use of or withdrawal from)
    • Delusional disorder
  • Organic psychosis (i.e. encephalitis, AIDS, tumor)

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