We diagnosed CL comprising diffuse large B-cell lymphoma (DLBCL) and nodal peripheral T-cell lymphoma with T-follicular helper phenotype (PTCL-TFH), according to the revised 2017 World Health Organization (WHO) classification [[3]]. Dear Editor, Composite lymphoma (CL) is defined as two or more distinct lymphoma subtypes in a single anatomic tissue or the same lymph node, while discordant lymphoma is two or more distinct lymphoma subtypes existing at different sites simultaneously [[1]]. [Extracted from the article]