title: Atypical spasmus nutans as an initial sign of thalamic neoplasm.
abstract: A patient is described who presented with dissociated nystagmus (atypical spasmus nutans) and an underlying pulvinar-tectal lesion. Atypical spasmus nutans is discussed and clinicians are alerted to a spectrum of possible etiologies.
mesh_terms: D001932:Brain Neoplasms / Q000150:complications*; D005260:Female; D006801:Humans; D007223:Infant; D008279:Magnetic Resonance Imaging; D009759:Nystagmus, Pathologic / Q000209:etiology*; D013035:Spasm / Q000209:etiology*; D013786:Thalamic Diseases / Q000150:complications*; D013787:Thalamic Nuclei / Q000473:pathology; D014103:Torticollis / Q000209:etiology*