title: Immature Teratoma Associated With Anti-N-Methyl-D-Aspartate Receptor Encephalitis.
abstract: Gynecologic teratomas commonly present with pelvic symptoms. The authors report a case of teratoma causing acute psychosis, encephalopathy, and sudden-onset seizures in a previously healthy 33-year-old woman. After common organic causes were excluded, investigation revealed an immature teratoma containing brain tissue on her left ovary. Anti-N-methyl-D-aspartate receptor encephalitis was diagnosed and, with excision and medical management, her symptoms resolved and she was discharged home in stable condition. Encephalopathy is not commonly attributed to gynecologic causes, but anti-N-methyl-D-aspartate receptor encephalitis may be caused by ovarian teratomas with a neuronal component. Thorough gynecologic examination should be performed on any female patient presenting with new-onset psychosis, encephalopathy, and seizures, especially in the absence of other organic or structural causes. Thus, it is important to look at the whole patient and not just the symptoms.
authors: Yuliya
authors: Y
authors: Malayev
authors: Jared
authors: J
authors: Alberts
authors: Mary Ann
authors: MA
authors: Verardi
authors: Anissa R
authors: AR
authors: Mattison
authors: Sherwin
authors: S
authors: Imlay
mesh_terms: D000328:Adult; D060426:Anti-N-Methyl-D-Aspartate Receptor Encephalitis / Q000150:complications* / Q000175:diagnosis; D001706:Biopsy; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D010051:Ovarian Neoplasms / Q000175:diagnosis / Q000209:etiology*; D013724:Teratoma / Q000175:diagnosis* / Q000209:etiology; D014057:Tomography, X-Ray Computed