Pedigrees of families 1 and 2 are shown in (
A
) and (
B
), respectively. T1-weighted FLAIR mode sagittal slice images of brain MRI of patients 1 and 2–1 are shown in (
C
) and (
D
), respectively. Sequenograms of the identified mutations in patients 1 and 2–1 are shown in (
E
) and (
F
), respectively. FLAIR, fluid attenuated inversion recovery; MRI, magnetic resonance imaging.