Seven out of 10 positive cHL (70%) had PD-L1 positivity in 100% of the neoplastic cells (Figs 1C, 1D and 2B) as well as one case of primary mediastinal B-cell lymphoma in contrast to only 3 out of 13 positive DLBCL (23%). Here, CD274 is linked to B-cell non-Hodgkin lymphoma.