MTOR and subcortical band heterotopia: The efficacy of ASMs was found to be limited in one of the reported cases, who subsequently was given the mTOR inhibitor everolimus; however, no mention was made of the effect.5Shim et al and Guerra et al, described the MRI diagnosis of brain abnormalities in the normal-appearing hemisphere, including cortical tubers, band heterotopia, subependymal hamartoma, and white matter lesions.2, 7In these two reported cases, functional hemispherectomy was performed at, respectively, 5.5 weeks and 27 months of age.