Hi. I have had breat cancer since 1994. Now, Am taking Aromasin. My CEA and CA15.3 have been increasing, latest up to 12 and 96 respectively. Did a CT and mamography, both were negative. Did a gastroscopy, had mild gastritis, did a PET scan and there was some increased uptake foci (SUV 11) in the esophagus, mediatinum and other places. Diferrential diagnosis was metastasis or inflammatory disease. Now am shcduled for a colonoscopy. Am 68 year old white female, with no family history of cancer. Do you think an autoimmune disease can increase the markers this high?