RET/PTC1 (coiled‐coil domain containing 6 [CCDC6]‐rearranged during transfection) rearrangement is a distinctive feature in over 70% of thyroid cancers who exposed to low doses of IR in Chernobyl and Hiroshima‒Nagasaki atomic bombings. Here, CCDC6 is linked to thyroid gland carcinoma.