Abstract
Background/aim: Hallucinations are the special ability to experience phenomena that are not visible to normal individuals. Hallucinations, delusions, and confabulations are common symptoms between neurology and psychiatry. Nervous disease that manifests with hallucinatory symptoms like this is one of them due to right hemispheric stroke. The authors report cases of new-onset organic hallucinosis. and stroke in brain regions similar to the salience network (insular cortex, parietal cortex, and striatum). Case: A 43-year-old man comes to the ER Sanglah Hospital Denpasar, Bali Indonesia with complaints of slurred speech using an incomprehensible language, and repeating the same words. Talking about seeing a shadow following him but actually not there. Patients often experience sleep disorders, from the results of neurological physical examination found right eye ptosis, pupil anisokor, nerve III dextra complete lesion, supranuclear left NVII paresis, supranuclear left NXII paresis, left flaccid hemiparesis. Psychiatric status obtained unnatural appearance, looks confused, verbal and visual contact is sufficient, mood dysphoric, confused affect and there is no harmony. The thought process obtained realistic, coherent, preoccupation with pain. Perceptual disturbances in the form of visual and auditory hallucinations. Insomnia mixed type and there is hypobulia. Psychomotor calm on examination, history increases. Narcissistic personality traits and defense mechanisms of ego repression. Grade 4 view. CT scan of the head with and without contrast shows subacute ischemic cerebral infarction in the right internal capsule to the right thalamus and midbrain. Conclusion: Organic hallucinosis occur in non-hemorrhagic stroke caused by thrombosis process if an infarction is found in the right hemisphere. Keywords: organic hallucinations, ischemic cerebral infarction, non-hemorrhagic stroke, right hemisphere.
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