Clinical and Angiographic Features of Patients with Moyamoya Disease and the p.R4810K Heterozygous Variant

The clinical and angiographic features of a Chinese MMD population with the p.R4810K variant were similar to those of a Japanese MMD population; they might be a distinct cerebrovascular disease entity and represent a separate subgroup. A modified Suzuki-Mugikura grading system was valuable for predicting stroke and evaluating disease severity.