Early-Onset Schizophrenia Presenting with Extra-Campine Hallucinations and Obsessive-Compulsive Symptoms: A Rare Clinical Constellation.

Early-onset schizophrenia (EOS), defined as onset before 18 years of age, is a rare and diagnostically challenging condition. We report the case of a 15-year-old boy presenting with progressively worsening academic and social functioning, unusual hallucinations perceived from distant locations (extra-campine hallucinations), and cooccurring obsessive-compulsive symptoms (OCS). These symptoms were further complicated by intermittent cannabis use, although psychotic features clearly predated substance involvement. Despite outpatient treatment with antipsychotics, symptom persistence warranted inpatient management. This case underscores the importance of early recognition, comprehensive evaluation, and individualized intervention in EOS.