title: Truncal ataxia from infarction involving the inferior olivary nucleus.
abstract: Truncal ataxia in medullary infarction may be caused by involvement of the lateral part of the medulla; however, truncal ataxia in infarction involving the inferior olivary nucleus (ION) has received comparatively little attention. We report a patient with truncal ataxia due to medial medullary infarction located in the ION. A lesion in the ION could produce a contralateral truncal ataxia due to increased inhibitory input to the contralesional vestibular nucleus from the contralesional flocculus.
authors.affiliation: Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
authors.forename: Jae Hyun
authors.initials: JH
authors.lastname: Park
authors.forename: Sookyung
authors.initials: S
authors.lastname: Ryoo
authors.forename: So Young
authors.initials: SY
authors.lastname: Moon
authors.forename: Sand Won
authors.initials: SW
authors.lastname: Seo
authors.forename: Duk L
authors.initials: DL
authors.lastname: Na
mesh_terms: D000305:Adrenal Cortex Hormones / Q000008:administration & dosage; D001259:Ataxia / Q000175:diagnosis / Q000188:drug therapy / Q000209:etiology* / Q000503:physiopathology; D020520:Brain Infarction / Q000150:complications* / Q000175:diagnosis / Q000473:pathology; D005684:Gait; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009847:Olivary Nucleus / Q000473:pathology* / Q000503:physiopathology; D020127:Recovery of Function; D016896:Treatment Outcome
chemical_list: D000305:Adrenal Cortex Hormones