title: A rare adult cause of dizziness.
abstract: A 55-year-old man was seen with progressively worsening dizziness over 10 months. The initial assessment with unremarkable laboratory and imaging studies suggested a peripheral vestibular disorder. He was then lost to follow-up but later was seen with worsening ataxia. Additional imaging studies showed subtle parenchymal lesions in the posterior fossa. The differential diagnoses included nutritional deficiencies, autoimmune disorders, systemic malignancies, and intracranial tumors. The final diagnosis was confirmed by a biopsy.
authors.affiliation: Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas.
authors.forename: Francy
authors.initials: F
authors.lastname: Shu
authors.affiliation: Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas.
authors.forename: Robert
authors.initials: R
authors.lastname: Oberle
authors.affiliation: Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas.
authors.forename: Emily
authors.initials: E
authors.lastname: Herndon
authors.affiliation: Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas.
authors.forename: Kimmo
authors.initials: K
authors.lastname: Hatanpaa
authors.affiliation: Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas.
authors.forename: James
authors.initials: J
authors.lastname: Battiste
authors.affiliation: Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas.
authors.forename: Steven
authors.initials: S
authors.lastname: Vernino
mesh_terms: D001259:Ataxia / Q000209:etiology*; D002528:Cerebellar Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000473:pathology / Q000628:therapy; D003937:Diagnosis, Differential; D004244:Dizziness / Q000209:etiology*; D006801:Humans; D008297:Male; D008527:Medulloblastoma / Q000150:complications / Q000175:diagnosis* / Q000473:pathology / Q000628:therapy; D008875:Middle Aged; D016896:Treatment Outcome