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Dr. SH
Dr. SH, Board Certified Physician
Category: Medical
Satisfied Customers: 8808
Experience:  Doctor of Medicine
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Why do some ppl with metastic colon cancer have a cea f like

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Why do some ppl with metastic colon cancer have a cea f like around 500 and aome have a cea of under 100 ?
Hi there.
Thank you for your question.
I will be helping you out with your queries.
The levels of CEA vary from one person to another depending on the number of metastases.
So the lower the CEA levels the lesser the number of mets.
Customer: replied 2 years ago.

I am confussed as my father has ;

about 9 liver mets ( all small except 1 large )

4 peritoneal nodules (7mm)

1 aortocaval node 2 cm

the above seems quite alot of mets right ? His cea fete round 2 chemo is 55 but before chemo was 65

The number of mets is a lot but their sizes are generally small which is why the CEA level is not as high.
Customer: replied 2 years ago.

Is it better cea is lower than high

also although cea dropped from 65 to. 55 can it go up again. ?

It is better to have a lower CEA level.
It can go back up again if the mets increase in number or size.
Customer: replied 2 years ago.

So u dont think the fact he had the chemo stopped

when there was still half hour left will make a difference ?

I do not think half an hour left in chemo should make a lot of difference.
I would appreciate it if you rate me.
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