title: Neuromyelitis optica mimicking intramedullary tumor.
abstract: Neuromyelitis optica (NMO) is considered to be a rarer autoimmune disease than multiple sclerosis. It is very difficult to make a diagnosis of MNO for doctors who are not familiar with its clinical features and diagnostic criteria. We report a case of a young female patient who had been suffering motor weakness and radiating pain in both upper extremities. Cervical MRI showed tumorous lesion in spinal cord and performed surgery to remove lesion. We could not find a tumor mass in operation field and final diagnosis was NMO. NMO must be included in the differential diagnosis of lesions to rescue the patient from invasive surgical interventions. More specific diagnostic tools may be necessary for early diagnosis and proper treatment.
authors.affiliation: Department of Neurosurgery, Dankook University College of Medicine, Cheonan, Korea.
authors.forename: Si-Hyuck
authors.initials: SH
authors.lastname: Oh
authors.forename: Kyeong-Wook
authors.initials: KW
authors.lastname: Yoon
authors.forename: Young-Jin
authors.initials: YJ
authors.lastname: Kim
authors.forename: Sang-Koo
authors.initials: SK
authors.lastname: Lee
keywords: Autoimmune disease; Neuromyelitis optica; Spinal tumor
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