We did not find any other mutations in genes encoding histone variants H3.1 or additional H3F3A mutations, in contrast with the recent report by Sloan et al., who reported H3F3A p.G34W in grade II and III spinal cord astrocytomas [43].We did not find TERT promoter mutations among HG IMAs, in contrast with those in the brain, and with two recent studies [1, 8]. The gene discussed is TERT; the disease is spinal cord astrocytoma.