Hi, dear I have gone through your question. I can understand your concern. Twisted bowel may or may not seen on contrast ct scan. Polyp can be seen but we can not say surely that it is cancerous or not without biopsy . You should wait for biopsy report. It will give you exact diagnosis whetheryou have benign polyp or cancerous. Then you should take treatment accordingly. Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using health care magic. Wish you a very good health.