Liver mets tend to impact CEA to a much greater extent than mets in places like the lungs or lymph nodes. Time and again I've seen posters for whom CEA was never a good marker (I'm in the same boat) get sudden big jumps with liver involvement. An increase from .9 to 1.0 is not
in any way significant. I'd say chances are very good that this is something benign, especially in light of the fact that you've had cysts previously.
How often does your doctor test CEA? If I were you, I'd push for the next blood draw to be moved up, just to be sure everything is staying stable on that front. If your CEA were to jump significantly, you would have a very good case to get the MRI done more expeditiously. If possible, you should try to get your doctor to test CA19-9 as well. Although more commonly used for pancreatic cancer, CA19-9 is a good marker for some colon cancer patients (see the article below). I was able to convince my doctor to test both.http://naosite.lb.nagasaki-u.ac.jp/dspace/bitstream/10069/16158/1/acta45_01_08_t.pdf
I know it's much easier said than done, but try hard not to worry.
11/14 Dx sigmoid CC @ 45yo
12/14 Colectomy + hysterectomy
Stage IIIB, T3N1bM0, 2/20 nodes, MSS, G2, KRAS(A146T), TP53, SMAD4, ERBB2, CEA 1.0
2/15-7/15 XELOX, Celebrex & many supplements
3/16 Ovarian mass removed. Benign fibroid
9/16 clean colonoscopy
3/17 clean CT
Ongoing Celebrex, cimetidine & other carefully-targeted supplements
Post-chemo CEA 3.0, 2.5, 2.3, 2.0, 1.6, 1.3, 1.8, 2.1, 1.8, 2.0, 1.8, 1.9, 1.7, 1.5, 1.6, 1.5, 1.4, 1.4, 1.3, 1.3, 1.6, 1.6, 1.3, 1.4
Mom to a 4 & 6yo