PDLIM7 and extranodal nasal NK/T cell lymphoma: Given the heavy involvement of EBV in many cases of NKTCL, EBER positivity and EBV-encoded proteins such as latent membrane proteins (LMP), LMP1, and LMP2A have also been identified as characteristic of NKTCL and have potential prognostic value for NKTCL patients (66, 67).