Non-ketotic hyperglycemic hemichorea

Case contributed by Dr Chee Kok Yoon


20 years old Asian female presented with acute onset of hyperglycemia in the context of undiagnosed diabetes mellitus. Presented with severe chorea movements of all 4 limbs, right worse than left. Slight improvement of chorea after 3 months of symptom onset.

Patient Data

Age: 20
Gender: Female

High T1 and low T2/FLAIR signal are seen in the caudate and lentiform nucleus. 

Case Discussion

Non ketotic hyperglycemic hemichorea (NHH) is rare, and is one of the causes of T1 bright basal ganglia. 

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Case information

rID: 21798
Published: 19th Feb 2013
Last edited: 11th Jan 2020
Inclusion in quiz mode: Included

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