MRI also demonstrated decreased cranial cavity predominatly in frontal region(in five patients),pachygyria(in two patients),and diffuse or local brain atrophy(in 24 patients).

• 有5例患儿颅腔小，尤以前额部明显，其中2例还出现脑皮质光滑，缺少脑沟回；弥漫性和局性灶脑萎缩24例。