@celia16 well first off i'm a 10 yr thyroid cancer survivor myself but
back in 1988 my mom and i think it was 4 (maybe 5, that was a long time ago) of her first cousins were all diagnosed with cancer within about a year of each other, and ended up being treated by same doctor's office under the overseeing of the doctors at UVA where i am going for my treatment. Ironically 4 of the 5 all ended up in the office one day for checkups and were just cutting up and carrying on like cousins do and the office staff noticed and asked if they knew each other...well of course they told them they were all first cousins and hadn't connected in a while...and thus triggered the genetic sampling of them before BRCA even became known about i think...but it turned out that my mom and 1 of the others were children of men, they had developed breast to bone...the ones of the girls developed reproductive cancers.. my maternal grandpa had lung cancer and my brother had both thyroid and testicular cancer before he passed (from a deep brain bleed) so that's a not so quickie version of my family history..