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.

BACKGROUND: Human infection of Streptococcus suis in Indonesia was increasing in the following years. Many cases presented with meningitis and sepsis, but in the current case, we presented a rare case of meningitis S. suis infection with spondylodiscitis. CASE REPORT: A 60-year-old man, Balinese, presented with the 3-day onset of fever, headache, and nausea. Three-hour before admission, he became agitated and decreased of consciousness. He had a history of pork consumption 4 days before admission. He was subsequently diagnosed with acute bacterial meningitis and sensorineural hearing impairment. In the next 2 weeks, he developed low back pain, confirmed as spondylodiscitis from magnetic resonance imaging, a less common presentation of S. suis infection. After 4-week intravenous ceftriaxone treatment, he improved significantly with only hearing impairment remaining. CONCLUSION: Meningitis suis is a systemic infection which can manifest in any organ. The clinician should suspect any low back pain as spondylodiscitis in a patient who had S. suis meningitis.

HSVE (Herpes simplex virus encephalitis) is an infection caused by herpes simplex virus type 1 (HSV-1) or type 2 that produces neurologic problems. HSVE is associated with significant morbidity and mortality in adults even with antiviral medication, and it is a fatal disease in babies and children regardless of treatment. The most likely pathways include retrograde transmission through the olfactory or trigeminal nerves, as well as hematogenous spread. The most common presenting symptoms are encephalopathy, fever, convulsions, headache, and regional neurologic dysfunction. An accurate history and physical examination are required to identify Herpes simplex virus encephalitis (HSVE), and a prompt assessment is advised after the diagnosis has been established. HSVE is a neurodegenerative disease that may be fatal. Rapid diagnostic work-up and early diagnosis in all suspected or confirmed cases will result in early initiation of intravenous acyclovir, which may decrease morbidity and death.