LCK and diffuse large B-cell lymphoma of the central nervous system: The GEO (series http://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE11392) (Fig. 2C) and Oncomine (Fig. 2D) databases both showed that there were no differences in LCK expression between CNS DLBCL (PCNSL) and non‐CNS DLBCL.