CDKN2A and gonorrhea: BRAF V600E, another common mutation found in PAs, is often associated with additional alterations such as deletion in the tumor suppressor gene CDKN2A (Cyclin dependent kinase inhibitor 2A), SNVs in NF1, FGFR1 (Fibroblast growth factor receptor 1), KRAS (Kirsten rat sarcoma viral oncogene homolog), and H3F3A (H3 histone family member 3A), but never with fusion events.