Moyamoya Disease 4 with Short Stature, Hypergonadotropic Hypogonadism, and Facial Dysmorphism, also known as moyamoya angiopathy-short stature-facial dysmorphism-hypergonadotropic hypogonadism syndrome, is related to moyamoya disease 1 and stroke, ischemic. An important gene associated with Moyamoya Disease 4 with Short Stature, Hypergonadotropic Hypogonadism, and Facial Dysmorphism is MYMY4 (Moyamoya Disease 4). Affiliated tissues include brain and eye, and related phenotypes are moyamoya phenomenon and hypertension