Delusional infestation is a psychiatric condition in which a patientbelief that they are infested with living organisms in the absence of any objective evidence. The objective of this case report is to highlight a rare case of delusional infestations in a patient with schizophreniawho misusing polysubstance abuse.
He was diagnosed to be suffering from schizophrenia and was successfully treated with monthly antipsychotic depot injection in view of his poor adherence to medication On examination, ulcerated scalpwound measuring 4 x 4 cm was noted at the parieto-occipital region of the scalp. SkullX-ray and computerized tomography (CT) scan of the brain were normal. Electroconvulsive therapy (ECT) was introduced in view of slow treatment response and self-inflicted injury. The symptoms were successfully controlled after eight months, and no extrapyramidal side effect was observed.
Conclusion:
Patients with delusional infestation often poorly adhered to his treatment medication and the usage of depot injection of antipsychotic may benefited some patients to control the psychotic symptoms. ASEAN Journal of Psychiatry, Vol. 17 (2) July – December 2016 XX XX.