Fregoli Delusion: A Rare Subtype of Delusional Misidentification Syndromes (DMSs)

As a rare subtype of delusional misidentification syndromes (DMSs), Fregoli Delusioninvolves the belief that two or more individuals are actually the same persondisguised as another. In this case report, a 23-year-old male presents with FregoliDelusion, self-inflicted harm, and a history of being kidnapped and abused. While thepatient had abstained from alcohol and drugs for two years, neuroimaging revealednon-specific developmental anomalies, adding to the complexity of the clinicalsituation. Diagnoses and treatments are complicated by the coexistence of psychoticsymptoms, mood dysregulation, and complex delusional constructs. A combinationof antipsychotic medication and cognitive behavioural therapy is more effective intreating schizophrenic patients. It is important to closely monitor this patient due totheir history of non-adherence to their treatment plan and drug abuse. As a result ofthis situation, trauma-focused care and personalized interventions are necessary, aswell as additional research to enhance the treatment of Fregoli Delusions resultingfrom this situation.