CD274 and carcinoma: In contrast, cluster group 4 in LUAD and cluster group 3 in LUSC revealed TME type 1 (PD-L1+; TIL+) with a high frequency of both immunosuppressive carcinoma cells (726.65/mm2; 857.37/mm2) and lymphocytes (989.64/mm2; 1034.28/mm2).