Posted 8/8/2017 1:59 PM (GMT 0)
The descending colon is your left-side of the large intestine. It could've been a generalization meaning the whole left side including the rectum *shrug*. But, yes, technically saying descending colon doesn't include the sigmoid colon or the rectum. A CT scan isn't nearly as accurate and is only going to pick up on moderate to severe inflammation. You could've had mild inflammation within the rectum *shrug*. There's only so much you can accurately ascertain from a CT scan and a lot of guesswork. Again, scopes are more precise.