SBB edited the draft. He will act as the guarantor for the paper. MNM performed the literature search, drafted the paper and assisted in editing the paper. UL participated in data colection and assisted in drafting the paper. Although Moyamoya Disease commonly presents with focal neurological defect, it should be considered in the differential diagnosis of a movement disorder like chorea.
Early diagnosis is possible with modern angiographic and radiological modalities.
Prompt surgical treatment can result in minimal residual damage. References Chakraborti KL, Jena A, Puri RK, Goyal M. Magnetic resonance angiography in Moya- moya disease. Radiological findings in Moyamoya disease. Batistella PA, Carollo C. Clinical and radio-logical findings of Moyamoya disease in Italy. Steroid responsive chorea in Moyamoya disease.