E A.C.
,
It is a glycoprotein secreted
primarily by tumors of gastrointestinal origin.
This dose in the blood.
The elevation of the CEA (carcino
embryonic antigen) can occur in colorectal bleeding, Crohn's disease,
intestinal polyps, some gastritis, liver disease, particularly alcoholic
(cirrhosis).
Beyond 50 nanograms per liter, it is
often a sign of a malignant disease.
After a colon or gastric cancer, its
normalization is a good prognosis and monitoring to quickly detect recurrence.
Normal value: below 5 nanograms per
liter.
The MARKERS are substances that help
to affirm a disease from a biological point of view. In particular, currently,
many markers and thus can be assayed to determine the existence, or rather the
evolution of a cancerous tumor. The degree of specificity of these markers is
variable, that is to say, some are very specific markers of specific tumors:
for example, the determination of P S A... (Prostate Specific Antigen) is
specific for prostate cancer.
C antigens. A. (Carbohydrate
antigens) are very many specific tumors.
- For example, the C A.. 19/9 is a
marker of pancreatic tumors of the stomach, bile duct, colon.
- The C A.. 50 is a marker for
tumors of the gastrointestinal tract, ovary, and uterus.
- The C A.. 15/3 is a marker for
tumors of the breast, ovary and lung.
- The C A.. 125 is a marker for
ovarian cancer, endometrium (lining of the uterus), cervix, pancreas.
- It should be noted that the
determination of these markers can be used to detect cancerous tumors, but can
follow the development of these tumors after treatment, whether surgical or
chemotherapy.
- For the record, the A C is not
very specific but very useful in monitoring certain digestive or glandular
tumors E (carcinoembryonic antigen)....
Alpha-fetoprotein is also useful in
monitoring liver cancer.
Author: Mohammad
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