[Reversible hemifacial spasm due to non-ketotichyperglycaemia].

Hemifacial spasm (HFS) is a movement disorder affecting the facial muscles and is primarily due to a lesion related to the seventh cranial nerve or the brainstem. In this case report, a 71-year-old man had a rare presentation of acute onset HFS due to non-ketotic hyperglycemia. Type 2 diabetes was diagnosed during hospital admission. A brain magnetic resonance imaging showed a hyperintense lesion in the contralateral basal ganglia. Full remission of symptoms was seen within days after start of antidiabetic agents. Hyperglycaemic induced movement disorder is an important differential diagnosis to HFS and has a good prognosis.