I would like to know how common hardening of the carotid arteries is after having radiation to the head and neck. I was told that it could be a possibility. I am two years post Tx and have seen quite a few cases posted on other websites where patients have developed hardening of the carotid arteries even many years post radiation. It also seems that most of those people cannot seem to find a doctor experienced enough to correct the problem other than a stent. Any information on this will be appreciated.