Clinical and MR imaging findings in PMG patients

Patient	Age	Sex	Clinical Manifestation	Other MR Findings	PMG Location	Evaluated Lesion	T1 Pattern	Thickness (mm) Axial (Coronal)	T2 Pattern	Thickness (mm) Axial (Coronal)	Layer between Cortex and White Matter
1	3D	F	Zellweger syndrome	Germinolytic cysts	bil. Syl	Syl	2	4 (4)	1	4
2	2M	M	Epilepsy		bil. F, Syr, P	Syl	2	4 (3)	1	4 (3)
3	3M	F	Infantile spasmus	Microcephaly, hypoplastic CC	bil. Syl, P	Syl	Undifferentiated		1	3 (4)
4	3M	M	Large head, retardation		rt. hemi	P	2	5 (5)	1	4
	7M					P	2	6 (6)	1	4
	11M					P	2	6	1	4	Present
	2Y					F	2	5	1	3	Present
						P	2	6	2	6
5	5M	M	Retardation		bil. T	T	Undifferentiated		1	3
6	7M	M	Infantile spasmus		diffuse	Syl	2	6	1	3 (3)
7	12M	F	In utero drug exposure		lt. F, Syl	Syl	2	7 (6)	1	4
8	15M	F	rt. hemiparesis		lt. F, P, bil. Syr	F	2	6 (5)	1	3	Present
						P	2	6 (6)	2	6
9	15M	M	lt. hemiparesis		rt. hemi	F	2	7 (7)	1	4	Present
						P	2	7 (6)	2	7
10	18M	F	Retardation, focal seizure	small rt. Th, peducle	rt. hemi	F	2	6 (6)	1	3	Present
						P	2	6 (6)	2	6
11	18M	M	Seizure	heterotopia	bil. Syl, P	Syr	2	6 (6)	2	6
12	3Y	M	rt. hemiparesis		lt. hemi	Syr	2	7 (6)	2	7
13	8Y	M	Speech delay		rt. hemi, lt. F	Ins	2	8 (8)	2	8
14	8Y	M	Hydrocephalus	heterotopia, Agenesis of CC	bil. F	F	2	6 (6)	2	6
15	9Y	F	Retardation	heterotopia, hypoplastic CC	bil. F	F	2	8 (7)	2	8
16	11Y	M	Retardation	heterotopia, agenesis of CC	lt. F	F	2	7 (6)	2	7
17	43Y	F	Epilepsy		bil. Syr	Syr	2	6 (6)	2	6

Note.—PMG, polymicrogyria; D, day; M, month; Y, year; CC, corpus callosum; Th, thalamus; bil, bilateral; rt, right; lt, left; F, frontal; Syl, Sylvian; P, parietal; hemi, hemispheric.