I have appendix cancer but was thought to be advanced ovarian or colon
cancer pre-surgery. I had CA
-125 initially when it was thought to be 'just a cyst', following my CT results it wasn't possible to identify whether my primary was ovarian or bowel so I had CA-19.9 and CEA (and a colonoscopy). All were raised, more so the CEA and CA-19.9, the colonoscopy was clear. It turned out to be neither ovarian or colon cancer during surgery, although both organs were greatly affected.