Gallbladder needs to be removed due to gallstones. a ct scan revealed a 3.5cm solid mass abuts the pancreas. they said no cancer but can't identify ?

Requires surveillanc: Any soft tissue mass which is growing can be due to cancer. A biopsy of such a mass is required before we can find out the nature of this mass. I would recommend an interval reevaluation with a repeat CT scan in 2 months time, in order to determine if it is growing in size. If it is not growing over 6 months, it is unlikely to be cancer. A PET scan can give an answer sooner, but it is costly.