BRAF and neoplasm: Moreover, the follow-up of EGFR, Kirsten rat sarcoma virus (KRAS) and, v-Raf murine sarcoma viral oncogene homolog B1 (BRAF) genes mutations in ctDNA and exosomes over time revealed that the combined analysis of tumor materials from exosomes with ctDNA could markedly improve the achievement of a liquid biopsy test [171].