I had a kidney stone a couple of weeks ago and went into the ER (thinking I was dying) and they did an abdominal CT scan. Incidental to this, I have an appointment with a GI doc for IBS/functional disorder next week. Of course, I'm actually secretly afraid they'll discover colon cancer or something equally awful.

My question is, some sort of deadly stage four colon cancer would've shown up on the abdominal CT right?