Nonketotic hyperglycemic hemichorea - A rare presentation of elevated blood sugar.

Nonketotic hyperglycemic hemichorea, also known as diabetic striatopathy or hyperglycemia basal ganglia syndrome, is a rare presentation of hyperglycemia that can be the initial manifestation of diabetes or present in patients with long-standing poorly controlled diabetes. Patients will demonstrate ballismus or choreiform movements which are usually unilateral. On evaluation, patients' labs will show hyperglycemia without evidence of diabetic ketoacidosis.