"Diffuse dilation of small and large bowel, increased dilation from last year"-means that the bowel is enlarged throughout, not in a specific area, but it's more than last CT
"Finding suggest underlying ileus"-means that they suspect maybe causing these things is an obstruction
"bowel dilation has mildly increased"-means that compared to your last CT the enlargement of the bowel is more, but not by much
I imagine you've had problems with obstructions in the past? Sometimes you can have dilation, or enlargement of the bowel because of an obstruction. Things "back up" in the bowel and make the bowel irritated and larger in the area before where the food is actually getting stuck or slowing. It kinda indicates that there isn't a specific place that they saw causing the dilation, such as a stricture.
Of course, I am not a doctor, and the entire report is used to diagnose and treat you.
Combined with your symptoms, and your disease throughout time, your doctor should come up with a plan.
Don't freak out about anything at this time. Just hang in there and wait to talk to your doctor.
What has been going on with you? Is this just an annual CT, or are you having problems? What did your doctor say about your symptoms and what he thinks is going on with you?
Also, just to note...this is the reason typically patients don't actually see the reports from studies, because the wording can be confusing or can lead you to jump to conclusions that scare you.
31 yr old female-dx with Crohn's in '97 after emergency resection and appendectomy, 2nd resection '05
Currently on Humira, Prilosec, Effexor, Seroquel, Calcium, Vit D, sublingual B12; phenergan, ultram, clonazepam as needed