[Ovarian tumor associated with anti-N-methyl-D-aspartate receptor encephalitis: a report of 15 cases].
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Objective: To summarize the clinical features of patients with ovarian tumor and anti-N-methyl-D-aspartate receptor(NMDAR) encephalitis, and to explore the influence of operation patterns on the prognosis. Methods: The clinical information of patients with ovarian tumor and anti-NMDAR encephalitis in The 3rd Affiliated Hospital of Sun Yat-Sen University and The Zhujiang Hospital of Southern Medical University were collected and analyzed. Results: There were 15 patients were enrolled in this study, with the average age of 24.5±5.0 years old. The most frequent first symptom was psychosis. The main clinical features were psychosis, seizures, conscious disturbance, autonomic dysfunction, dyskinesia, central hypoventilation and impaired memory. Most patients' symptoms were relieved after immunotherapy and surgery. The number of favorable prognosis of patients (mRS score 0-2) with ovariectomy was higher than that of the patients with ovarian cystectomy (5 vs 3). But the difference had no statistical significance (P=0.529). Conclusions: For young female patients with psychosis, we should be alert to the possibility of anti-NMDAR encephalitis and screen for tumor. Treated with immunotherapy and operation, most patients can get a favorable prognosis.