I received news Friday that both my CT scans from this week are clear of evidence of tumors. This was relatively good news. The CT scan equipment can measure things reliably down to about a quarter of an inch. Thus, we ruled out anything big and vicious. So we can guess that the elevated CEA is either an early sign of some future recurrence or that the Xeloda is causing liver toxicity. We'll find out more in a few weeks when I retake the CEA.