Colorectal cancer patients whose CEA blood tests rise at the beginning of chemotherapy and then fall (CEA flare) do better than patients with a consistently rising CEA.   CEA flares don’t necessarily predict worsening cancer.

Compared to patients with consistently rising carcinoembryonic antigen (CEA), patients who had a CEA flare had more tumor shrinkage, longer time before their cancer got worse, and longer survival time. Read the rest of this entry »