Severe reversible chorea complicating non‐ketotic hyperglycaemia

Movement disorders can manifest as initial presentations in a variety of metabolic and endocrine disorders. Chorea, though rare, has been documented to occur in patients with non‐ketotic hyperglycaemia and usually has a good prognosis once the causal association is recognised and the hyperglycaemia treated. We report the case of an 87‐year‐old lady who presented with chorea complicating non‐ketotic hyperglycaemia, and this was confirmed with MRI brain imaging demonstrating the classical feature of this condition. A high T1‐weighted signal in the putamen is quite characteristic of this condition. Copyright © 2009 John Wiley & Sons.