Meanwhile, RET proto-oncogene is found in medullary thyroid carcinoma, and while a small-case analysis of medullary thyroid carcinoma among Mexicans has been performed, larger studies could be conducted to evaluate any possible connection between any particularly Hispanic subgroups and medullary thyroid cancer/multiple endocrine neoplasia type 2 [51,52]. This evidence concerns the gene RET and multiple endocrine neoplasia type 2.