Could a "full" bladder on ct with contrast of abdomen & pelvis be confused or misread as bladder cancer/tumor/problems?

YES: It is possible for any ct scan to be misread; however cancer or tumors generally look different than a full bladder does. Be sure to discuss the results with your healthcare provider in detail. If some doubt still exists; another type of test like MRI or cystocsopy may be more definitive.

Probably Not: A full bladder on ct is just a sign that it is full. A full bladder is better than an empty bladder but if it was done because of blood in the urine, you still need to complete the workup with cystoscopy.

Probably Not: Part of the intent of using contrast on a ct scan of the pelvis is to "fill the bladder" this allows us to see if there is thickening of the bladder walls, or filling abnormalities among other things. It's unlikely that a full bladder represents problems, unless the problem is one of emptying the bladder. Then a reason must be sought if the bladder doesn't empty normally.