PTEN and melanoma: Additional oncogenic events involve other genes like NRAS, neurofibromin 1 (NF1), KIT proto-oncogene receptor tyrosine kinase (KIT), telomerase reverse transcriptase (TERT) gene, cyclin-dependent kinase inhibitor 2A (CDKN2A) gene, and phosphatase and tensin homolog (PTEN) gene, contributing to melanoma progression and metastasis [8,9,10,11,12,13,14,15].