A 32-year-old female with depression on treatment, was presented with acute psychosis, behavioural symptoms, autonomic instability and a prodromal illness. This occurred on a background of a strong family history of schizophrenia. Despite escalating doses of anti-psychotics, she failed to improve. Her CSF showed a lymphocytic pleocytosis and confirmed the presence of anti-NMDAR antibodies. Following treatment with immunotherapy and excision of her underlying ovarian tumour, she showed a dramatic and seemingly full recovery of her psychotic symptoms. She was weaned off all medications with no residual symptoms. Clinician awareness is important to treat this uncommon but potentially reversible condition.
KeywordsPsychosis; Ovarian Teratoma; Encephalitis
Case PresentationA 32-year old woman with a previous history of depression and strong family history of schizophrenia was presented to a rural hospital with a three-day history of confusion, insomnia, agitation, auditory and visual hallucinations. She was initially diagnosed with acute psychosis and treated with olanzapine, quetiapine, sodium valproate and clonazepam. Ten days prior to presentation, she had a prodromal viral like illness with headaches and arthralgias treated as migraine with no improvement.This presentation was complicated by significant hemodynamic compromise (fever, hypotension and tachycardia), and she was transferred to our hospital due to concerns regarding neuroleptic malignant syndrome or an underlying meningo-encephalitic process.On examination, she had a temperature of 38.6˚C, sinus tachycardia (pulse = 130 b/min), hypotension (BP = 95/65 mmHg) and hyperreflexia but no meningeal signs. She displayed florid psychotic symptoms-including