BRCA2 and pancreatic neoplasm: There are also several other oncogenes in which somatic changes lead to the development of pancreatic tumours, including genes BRCA1, BRCA2, PALB2, TP53, CDKN2A, SMAD4, MLL3, TGFBR2, ARID1A and SF3B1 [18,19,20].