Dear All, We have a patient with a very high CA199, went from 9000 to 17500 in about 6 days, using Roche E170 (Elecsys) assay. Could anyone help by reassaying the sample for us on another system? The man had an hepatic abscess which is now clearing, but we were rather surprised that the Ca199 was rising not falling. Practical assistance much appreciated. Thanks in anticipation Helen Smith ------ACB discussion List Information-------- This is an open discussion list for the academic and clinical community working in clinical biochemistry. Please note, archived messages are public and can be viewed via the internet. Views expressed are those of the individual and they are responsible for all message content. ACB Web Site http://www.acb.org.uk List Archives http://www.jiscmail.ac.uk/lists/ACB-CLIN-CHEM-GEN.html List Instructions (How to leave etc.) http://www.jiscmail.ac.uk/