Colorectal cancer laboratory tests: Difference between revisions
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*Serum [[carcino-embryogenic antigen]] ([[CEA]]) and [[CA 19-9]] <ref name="pmid10528904">{{cite journal| author=Macdonald JS| title=Carcinoembryonic antigen screening: pros and cons. | journal=Semin Oncol | year= 1999 | volume= 26 | issue= 5 | pages= 556-60 | pmid=10528904 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=10528904 }}</ref> | *Serum [[carcino-embryogenic antigen]] ([[CEA]]) and [[CA 19-9]] <ref name="pmid10528904">{{cite journal| author=Macdonald JS| title=Carcinoembryonic antigen screening: pros and cons. | journal=Semin Oncol | year= 1999 | volume= 26 | issue= 5 | pages= 556-60 | pmid=10528904 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=10528904 }}</ref> | ||
**Elevated concentrations are associated with large tumor masses and have a poor prognosis | **Elevated concentrations are associated with large tumor masses and have a poor prognosis | ||
**Sensitivity of CEA in diagnosis of colorectal cancer is almost 50% | **Sensitivity of CEA in diagnosis of colorectal cancer is almost 50%<ref name="pmid25105762">{{cite journal| author=Liu Z, Zhang Y, Niu Y, Li K, Liu X, Chen H et al.| title=A systematic review and meta-analysis of diagnostic and prognostic serum biomarkers of colorectal cancer. | journal=PLoS One | year= 2014 | volume= 9 | issue= 8 | pages= e103910 | pmid=25105762 | doi=10.1371/journal.pone.0103910 | pmc=4126674 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=25105762 }}</ref> | ||
*Serum iron levels | *Serum iron levels | ||
**Low | **Low | ||
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*Serum Calcium levels | *Serum Calcium levels | ||
**Hypercalcemia seen with bone metastasis | **Hypercalcemia seen with bone metastasis | ||
==References== | ==References== |
Revision as of 20:20, 24 January 2019
Colorectal cancer Microchapters |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Saarah T. Alkhairy, M.D.
Overview
The laboratory findings associated with colorectal carcinoma are the following: CBC, FOBT, serum CEA and CA 19-9 concentration, serum iron concentrations, serum vitamin B12 and folate concentrations, liver function tests, and pulmonary function tests.
Colorectal Cancer Laboratory Findings
Laboratory findings consistent with the diagnosis of colorectal cancer include:
- Complete blood count and differential count
- anemia
- Individuals with microcytic anemia over 50 years of age are suspected of having colorectal cancer[1]
- Fecal occult blood test(FOBT)
- Demonstrates occult bleeding from the intestines
- Serum carcino-embryogenic antigen (CEA) and CA 19-9 [2]
- Elevated concentrations are associated with large tumor masses and have a poor prognosis
- Sensitivity of CEA in diagnosis of colorectal cancer is almost 50%[3]
- Serum iron levels
- Low
- Serum vitamin B12 and folate levels
- Low
- Serum Calcium levels
- Hypercalcemia seen with bone metastasis
References
- ↑ Zhu, Amy; Kaneshiro, Marc; Kaunitz, Jonathan D. (2010). "Evaluation and Treatment of Iron Deficiency Anemia: A Gastroenterological Perspective". Digestive Diseases and Sciences. 55 (3): 548–559. doi:10.1007/s10620-009-1108-6. ISSN 0163-2116.
- ↑ Macdonald JS (1999). "Carcinoembryonic antigen screening: pros and cons". Semin Oncol. 26 (5): 556–60. PMID 10528904.
- ↑ Liu Z, Zhang Y, Niu Y, Li K, Liu X, Chen H; et al. (2014). "A systematic review and meta-analysis of diagnostic and prognostic serum biomarkers of colorectal cancer". PLoS One. 9 (8): e103910. doi:10.1371/journal.pone.0103910. PMC 4126674. PMID 25105762.