title: A potential case of peduncular hallucinosis treated successfully with olanzapine.
abstract: Visual hallucinations have a differential diagnosis, both psychiatric and nonpsychiatric in nature. Described first by Lhermitte, peduncular hallucinosis is an uncommon etiology of visual hallucinations (VH). Typically, the offending lesion is vascular in origin and occurs at the level of the midbrain, thalamus, or rostral brainstem. Interestingly, the origin of the VH in our patient's case could have been either/both from an ischemic insult at the midbrain or compression of the brainstem due to aneurism. While evidence for treatment is scarce, we present a posited case of peduncular hallucinosis treated successfully with olanzapine.
authors: Department of Psychiatryand Behavioral Sciences, Eastern Virginia Medical School, Norfolk, VA 23507, USA. spiegedr@evms.edu
authors: David
authors: D
authors: Spiegel
authors: Jessica
authors: J
authors: Barber
authors: Margarita
authors: M
authors: Somova
mesh_terms: D000368:Aged; D014150:Antipsychotic Agents / Q000627:therapeutic use*; D001569:Benzodiazepines / Q000627:therapeutic use*; D002544:Cerebral Infarction / Q000150:complications* / Q000175:diagnosis / Q000188:drug therapy / Q000523:psychology; D005260:Female; D005500:Follow-Up Studies; D006212:Hallucinations / Q000175:diagnosis / Q000188:drug therapy* / Q000523:psychology; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications* / Q000175:diagnosis / Q000523:psychology / Q000601:surgery*; D018810:Magnetic Resonance Angiography; D008279:Magnetic Resonance Imaging; D008609:Mental Status Schedule; D019965:Neurocognitive Disorders / Q000175:diagnosis / Q000188:drug therapy* / Q000523:psychology; D009460:Neurologic Examination; D000077152:Olanzapine; D011183:Postoperative Complications / Q000175:diagnosis / Q000188:drug therapy* / Q000523:psychology; D012559:Schizophrenia / Q000175:diagnosis / Q000188:drug therapy*; D012565:Schizophrenic Psychology; D013681:Tegmentum Mesencephali / Q000098:blood supply* / Q000473:pathology
chemical_list: D014150:Antipsychotic Agents; D001569:Benzodiazepines; D000077152:Olanzapine