CD276 and small cell lung carcinoma: On the other hand, in small cell lung cancer (SCLC), B7-H3 showed no significant correlation with clinicopathologic variables or TIL markers, although it was expressed in 64.9% of SCLC cases [123], while the contradictory conclusion that B7-H3 was a negative predictor in SCLC was suggested by Qiu et al. [124].