Numerous significantly focal CNVs around driver gene deletions in TP53, RB1, and RBL2 were evident in SCLC (Additional file 2: Table S8), along with deletions in CDKN2A and CDKN2B in paired ADC/SCC (Additional file 1: Figure S3D). This evidence concerns the gene CDKN2A and small cell lung carcinoma.