Significant differences among the major types of lissencephalies for each structure and specific features

Structure	Groups Compared and Associated Features	P Value
Splenium	cLIS, vertical or thin	<.001
	vLIS, absent or thin, and small
Brain involvement	cLIS, pachygyria (P > A, central, A > P)	<.001
	vLIS, pachygyria entire brain
Myelination	cLIS, normal	<.001
	vLIS, delayed
CC genu	cLIS, small inferior or N	.002
	vLIS, absent or small inferior
	CBSC, normal genu
HC	cLIS, normal	.003
AC	cLIS, normal or small	.047
	vLIS, absent
CC body	cLIS, normal or flat thin	.011
	vLIS, convex upward