Thank you for the query.
First of all you should know that ultrasound is very inaccurate examination and is not the perfect one to intestines checkup. It does not rule anything out, but it does not confirm the cancer as well. Such wall thickening can be due to some inflammation process around this area. It can be even appendicitis
which is recurrent in your case (appendicitis can be cured withing antibiotics in some cases but it likes to recur).
The most common colon cancer
symptom is blood in stool
. If you want to feel more comfort with it, you can perform occult fecal blood test
(available in every pharmacy). It will tell that the cancer is less probable if will be negative. However colonoscopy
should be performed either way.
Hope this will help.