I'm 61 and in treatment for Anal Squamous Cell Carcinoma. I was told operating was not an option unless I wanted a colostomy, so I am undergoing 6 weeks of radiation (5 days a week) and chemotherapy (mitomycin C and 5FU) continuous infusion via a pump during week 1 and week 4. Just completed week 1 and I made it through.
I'm surprised that you had surgery right away. Could be your tumor was smaller than mine (3cm). I hope you're doing well and that your tests show no further signs of the cancer.
Good luck
C