title: Limbic encephalitis and antibodies to Ma2: a paraneoplastic presentation of breast cancer.
abstract: A patient with atypical medullary breast cancer is described who presented with symptoms of limbic encephalitis. The patient's serum and CSF contained antibodies that reacted with the nervous system and the tumour. These antibodies recognised Ma2, a neuronal protein related to paraneoplastic limbic and brainstem encephalitis in men with testicular tumours. This report highlights the importance of testing for paraneoplastic antineuronal antibodies in cases of unexplained limbic encephalitis and suggests screening for breast cancer in women with antibodies predominantly directed to Ma2.
authors.affiliation: Department of Neurology, Queen Elizabeth Hospital, Edgbaston, Birmingham B15 2TH, UK. iansutton@hotmail.com
authors.forename: I
authors.initials: I
authors.lastname: Sutton
authors.forename: J
authors.initials: J
authors.lastname: Winer
authors.forename: D
authors.initials: D
authors.lastname: Rowlands
authors.forename: J
authors.initials: J
authors.lastname: Dalmau
mesh_terms: D000647:Amnesia / Q000209:etiology; D000951:Antigens, Neoplasm; D001323:Autoantibodies / Q000097:blood*; D014408:Biomarkers, Tumor / Q000032:analysis*; D001943:Breast Neoplasms / Q000150:complications* / Q000175:diagnosis / Q000276:immunology / Q000601:surgery; D018276:Carcinoma, Medullary / Q000150:complications* / Q000175:diagnosis / Q000276:immunology / Q000601:surgery; D004569:Electroencephalography; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D020363:Limbic Encephalitis / Q000175:diagnosis* / Q000276:immunology*; D008032:Limbic System / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000150:complications* / Q000175:diagnosis / Q000276:immunology / Q000601:surgery; D009419:Nerve Tissue Proteins; D009474:Neurons / Q000276:immunology / Q000473:pathology; D011506:Proteins / Q000276:immunology*; D013702:Temporal Lobe / Q000473:pathology
chemical_list: D000951:Antigens, Neoplasm; D001323:Autoantibodies; D014408:Biomarkers, Tumor; C119249:Ma2 antigen; D009419:Nerve Tissue Proteins; D011506:Proteins