title: Hemichorea-Hemiballism Secondary to Non-Ketotic Hyperglycemia.
abstract: Non-ketotic hyperglycemia is an unusual and rare cause of hemichorea-hemiballismus. Correction of the hyperglycemia usually results in total resolution of the signs and symptoms. We present the case and medical imaging findings of a 66-year-old female who presented with steadily worsening choreiform and ballistic movements of the right upper and lower extremities over a 2-week period. Her serum glucose was greater than 600 mg/dL, and no ketones were present. CT scan and MR demonstrated left basal ganglia abnormalities suggesting hyperglycemia-related hemichorea-hemiballismus syndrome. Restoration of euglycemia led to eventual resolution of all symptoms. Knowledge of this disorder is paramount so as to rule out other causes of intracranial pathology.
authors.affiliation: William Sansum Diabetes Center, Santa Barbara, CA, USA.
authors.forename: Jordan E
authors.initials: JE
authors.lastname: Pinsker
authors.affiliation: Jamaica Hospital Medical Center, New York, NY, USA.
authors.forename: Keivan
authors.initials: K
authors.lastname: Shalileh
authors.affiliation: Tripler Army Medical Center, Honolulu, HI, USA.
authors.forename: Veronica J
authors.initials: VJ
authors.lastname: Rooks
authors.affiliation: Jamaica Hospital Medical Center, New York, NY, USA.
authors.forename: Richard W
authors.initials: RW
authors.lastname: Pinsker
keywords: Chorea; Dyskinesias; Hyperglycemia