Table 1.

Patient Summary.

Patient ID	Sex	Onset Age	Initial Presentation	MRI	Surgery	Engel Class	Neuropathology	Brain regions studied
1a	F	4 months	Focal seizures followed by infantile spasms	Right hemisphere encephalomalacia	Right functional hemispherectomy	IA	FCDIc; Hyaline astrocytic inclusions	Right inferior posterior frontal gyrus and right temporal lobe lateral cortex
2a	F	6 months	Infantile spasms	Temporal FCD	Right functional hemispherectomy	IA	FCDIa; Hyaline astrocytic inclusions	Right frontal cortex and right superior temporal gyrus
3a	M	2 months	Infantile spasms	Left frontal PMG; equivocal right frontal PMG	Left functional hemispherotomy	IIIA	FCDIc; Hyaline astrocytic inclusions	Frontoparietal operculum and parahippocampus
4b	M	2 months	Infantile spasms; intractable focal motor seizures	FCD; Regional areas of PMG	Right hemispherotomy	IA	FCDIc; Hyaline astrocytic inclusions	Right frontal and temporal opercula, amygdala, hippocampus, insula
5b,c	M	4 months	Infantile spasms followed by onset of focal seizures	Normal	Left temporal lobectomy and parieto-occipital disconnection	IIIA	FCD; Hyaline astrocytic inclusions	Left temporal and parietal lobe
6c	F	7 months	Infantile spasms followed by focal seizures	FCD	Focal resection (twice)	III	FCD IIa; Hyaline astrocytic inclusions	Left frontal lobe

^aPatients previously reported by Bedrosian et al.(5)

^bPatients previously reported by Fischer et al.(7)

^cPatients previously reported by Lai et al.(6)