DOI: 10.36347/sjmcr.2015.v03i08.020

Pages: 714-716

We present a case of an elderly female with acute onset of psychiatric symptoms in the form of auditory and visual hallucinations, disorientation and forgetfulness. She had two episodes of generalized tonic clonic seizures after admission to the hospital. Magnetic Resonance Imaging (MRI) of the brain showed bilateral hippocampal and para hippo campal hyper intensities suggestive of limbic encephalitis (LE). Infective and metabolic causes for the same were ruled out. Considering para neoplastic etiology, investigations for primary site of malignancy including Fluoro-deoxy glucose - Positron Emission Tomography (FDG-PET) were done which did not yield positive results. Autoimmune limbic encephalitis was the diagnosis after excluding other aetiologies and patient was successfully treated with immunosuppression with steroids. Limbic encephalitis is a medical disease which commonly presents to psychiatric department due to multiple psychiatric complaints. Early recognition of LE based on clinical findings and MRI study in absence of ant neuronal surface antibody test does improve the outcome and prognosis of the patient in long term.