BCOR mutations in ENKTLs. (A) Mutation distribution. (B-D) Semiquantitative measurements of pSTAT3, CD30, and MYC expression as a function of BCOR mutation status. (E) Representative IHC images for MYC by BCOR mutation status. Original magnification ×400. (F) Kaplan-Meier plot of OS as a function of BCOR mutation status.