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Cancer Antigens (CEA and CA 19-9) as Markers of Advanced Stage of Colorectal Carcinoma
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Cancer Antigens (CEA and CA 19-9) as Markers of Advanced Stage of Colorectal Carcinoma
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Journal Article
Cancer Antigens (CEA and CA 19-9) as Markers of Advanced Stage of Colorectal Carcinoma
2013
Overview
CEA and CA 19-9 are the most common tumor associated antigens used in the staging of patients with rectal cancer and other parts of the colon.
of this study was to evaluate the value of CEA and CA 19-9 in serum of patients with colon cancer and prove its place in the diagnostic staging.
The study was retrospective-prospective performed at the Gastroenterohepatology Clinic, Clinical Center of Sarajevo University. The study included 91 hospitalized patients who had histologically confirmed diagnosis of colon adenocarcinoma in 98% of cases. All patients underwent colonoscopy, targeted biopsy and measurement of CEA and CA 19-9 levels in serum. All of them underwent abdominal CT and MRI of the pelvis in case of rectal cancer.
The study analyzed 58 men and 33 women, mean age 66.6 years, with the youngest patient at age of 35 and the oldest at age of 89 years. The largest number of patients was aged 56-75 years. According to localization 77 patients had carcinoma located in the area of the rectum and sigma 37.4 and 37.4 in the rectostigmoid area and sigma. Metastases were observed in 37 patients, with predominance in the liver (22 cases) and both liver and lungs (5 cases). CEA and CA 19-9 were determined in all cases but patients with metastases had high values, especially in the two cases of cecoascendent colon cancer where detected values were extremely high (1789ng/ml and 10780U/ml). Values of CA19 -9 were significantly higher (p<0.05). CEA mean values were highest in patients aged over 75 years. In case of CA 19-9 high mean values have been recorded in patients aged over 75 years with statistically significant differences between the age groups (p<0.05).
CEA and CA19-9 are cancer antigens that are late markers of carcinogenesis, with significantly elevated serum concentrations in case of colon cancer with already developed metastases. Older age group of patient has significantly elevated levels of both antigens. Cancer was twice more common in men than in women.
Publisher
Academy of Medical Sciences of Bosnia and Herzegovina,AVICENA, d.o.o., Sarajevo
Subject
