title: A probable cavernoma in the medulla oblongata presenting only as upbeat nystagmus.
abstract: A cavernoma is a vascular malformation in the central nervous system. Brainstem cavernoma are relatively common and induce variable neurological symptoms. A 19-year-old woman visited our hospital with complaints of continuous dizziness. On a neurological examination, continuous conjugated upbeat nystagmus was observed in the primary position of gaze. A brain CT scan and MRI showed focal hemorrhagic signals in the central caudal medulla caused by a cavernoma. The spontaneous upbeat nystagmus disappeared gradually. To our knowledge, this is the first report of a probable cavernoma in the medulla oblongata presenting with upbeat nystagmus only.
authors.affiliation: Department of Neurology, College of Medicine, Hanyang University, 249-1 Guri Hospital, Gyomun-dong, Guri-si, Gyeonggi-do 471-701, Republic of Korea.
authors.forename: Hojin
authors.initials: H
authors.lastname: Choi
authors.forename: Chang-Hun
authors.initials: CH
authors.lastname: Kim
authors.forename: Kyu-Yong
authors.initials: KY
authors.lastname: Lee
authors.forename: Young Joo
authors.initials: YJ
authors.lastname: Lee
authors.forename: Seong-Ho
authors.initials: SH
authors.lastname: Koh
mesh_terms: D001932:Brain Neoplasms / Q000150:complications* / Q000473:pathology; D005260:Female; D020786:Hemangioma, Cavernous, Central Nervous System / Q000150:complications* / Q000473:pathology; D006801:Humans; D008526:Medulla Oblongata / Q000473:pathology*; D009759:Nystagmus, Pathologic / Q000209:etiology* / Q000473:pathology; D055815:Young Adult