RET and thyroid gland papillary carcinoma: One of the most common radiation induced human papillary thyroid cancers (PTC) is characterized by the fusion of the intracellular kinase-encoding domain of RET to the first 101 amino acids of a gene named Coiled Coil Domain Containing 6 (CCDC6) which gives rise to the oncogene named RET/PTC1 [6], [7], [8].