The Cancer Genome Atlas (TCGA) with comprehensive genetic profiling of 279 HNSCC specimens demonstrated that EGFR, CCND1, PIK3CA, and FGFR1 amplifications and TP53, CDKN2A, and HRAS mutations are common genetic alterations in HNSCC [36]. This evidence concerns the gene CCND1 and head and neck squamous cell carcinoma.