NCAM1 and medulloblastoma: Histopathological evaluation of the samples revealed neuron specific enolase, Oligodendrocyte transcription factor, CD56, p53 as well as 30% to 40% K-67 positive (Fig. 1 D-H) which was consistent with the diagnosis of medulloblastoma (World Health Organization) grade 4 and a classic histological subtype.