Can a CT colonography show cancer in organs surrounding the bowel?

I know potentially no-one on here will know. I’m asking as I’m trying to get my Dr to refer me for an endoscopy as I’m worried about my stomach.
I had a CT colonography a year ago and that showed I had a kidney stone, so I’m wondering if it could have picked up a tumour in my stomach?

Anyone know?
I did ask my Dr but he brushed over it – saying ‘yes,’ I think?

Thanks guys.