My Dad (a similar age to you Dave) had a similar situation though in a different place. They removed the growths and he is regularly checked and so far is fine. He was told that, due to his age they would develop and grow very slowly if they returned, so would probably not be a desperate problem. (Meaning he'd probably die of old age before they killed him!) So there's an advantage of ageing!

Good luck and thoughts to you and I'm sure you will be fine

Love Lynne