저자들은 편측무도증이 발생한 후 그 원인질환으로 당뇨병이 진단되었고, haloperidol 단독요법에는 반응하지 않았으나, 혈당 조절에 의해 증상이 호전되었던 1예를 문헌고찰과 함께 보고한다. 비케톤성 고혈당과 연관된 편측무도증은 비케톤성 고혈당과 혈류 장애의 상승작용으로 인해 유발된 선조체의 불완전하고 일시적인 기능장애가 원인으로 추정되며, 혈당 조절과 haloperidol 치료로 호전된다고 알려져 있다.
Hemichorea associated with hyperglycemia is very rare disease. Furthermore, hemichorea as the initial manifestation of diabetic mellitus is extremely rare. We here report the case of new-onset hemichorea as first manifestation of type 2 diabetes mellitus. A 82-year old male without previously diagnosed diabetes mellitus, had visited at outpatients department of neurology because of dyskinesia at left side for 3 days. At initial studies, high signal basal ganglia lesion on the T1-weighted brain Magnetic Resonance Imaging and non-ketotic hyperglycemia were noted. Hemichorea had not improved by haloperidol monotherapy but by glycemic control. After insulin therapy, patient`s capillary blood sugar was controlled and hemichorea disappeared without anticonvulsants therapy.