<prompt> The expression of the following oncogene is associated with a high incidence of Medullary carcinoma of thyroid-P 53Her 2 neuRET protooncogeneRb gene  <response>: Harshmohan textbook of pathology 7th edition. RET gene is a proto oncogene normally code for receptor for growth factor RET receptor. Point mutation to this gene causes multiple endocrine neoplasi type 2A, type2B , medullary carcinoma of thyroid.. 