SPECIFIC MARKERS
9.1 Carcino embryonic antigen (CEA)
This marker correlates well with the presence of carcinoma in
the gastrintestinal tract especially mentioned in relation to Ca
of colon. Na marker is available for oesophagus, Stomach and
pancreatic carcinoma.
Ovarian CA 125 is most reliable for diagnosis of ovarian
carcinomas Prostate carcinoma, Prostatic specific antigen (PSA)
is useful marker for detecting prostate carcinoma
9.2 Hepatocellular Carcinoma
Serum alpha feto protein (AFP) in 50-80% of patients with liver
carcinoma, this marker is positive
Carcinoids 5 hydroxindole-acetic acid (5HIRA) is useful for
diagnosis and management of this tumour.
Fall in level of marker is indication of good response to treatment.
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