Hi and welcome to HCM. Thanks for the query.
If there was nothing on ct scan
then i doubt that there is any lesion on ylour liver
. surgeon may have seen soemthing like heamngiom but it could have seen just darker part of liver or he jsut saw sometzhing else. so i think that you shouldnt be worried,just have regular lft check ups and watch for any new symptom.
Wish you good health. Regards