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Related Concept Videos

Serum Laboratory Studies, Stool Test, Breath Test01:30

Serum Laboratory Studies, Stool Test, Breath Test

Gastrointestinal (GI) diagnostic studies are pivotal in confirming, ruling out, diagnosing, or staging various diseases, including cancers. Following diagnosis, allocating time for discussions with the patient and providing informational resources is crucial. Diagnostic assessments of the GI tract often occur in outpatient settings like endoscopy suites or GI labs. Preparation for these tests may include dietary restrictions, fasting, liquid bowel preparations, laxatives, enemas, and the...

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Updated: Jun 10, 2026

Evaluation of Colorectal Cancer Risk and Prevalence by Stool DNA Integrity Detection
07:35

Evaluation of Colorectal Cancer Risk and Prevalence by Stool DNA Integrity Detection

Published on: June 8, 2020

BRAF mutation testing in colorectal cancer.

Shree G Sharma1, Margaret L Gulley

  • 1Department of Pathology, University of Arkansas for Medical Sciences, Little Rock, USA.

Archives of Pathology & Laboratory Medicine
|July 31, 2010
PubMed
Summary

BRAF mutation testing is crucial for colorectal cancer diagnosis and treatment. Identifying specific BRAF mutations aids in differentiating cancer types, predicting response to therapies, and determining patient prognosis.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Colorectal cancer (CRC) is a leading cause of cancer mortality in the US.
  • Understanding the molecular mechanisms of carcinogenesis is key to improving CRC treatment.
  • BRAF mutations are significant in CRC pathogenesis and clinical management.

Purpose of the Study:

  • To elucidate the role of BRAF mutation testing in colorectal cancer.
  • To review analytical methods for BRAF mutation detection.
  • To highlight the importance of pathological interpretation in BRAF testing.

Main Methods:

  • Review of current literature on BRAF mutation testing in CRC.
  • Description of analytical techniques including real-time PCR, DNA sequencing, and pyrosequencing.

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  • Discussion of the clinical utility of BRAF testing in CRC management.

    • Main Results:

    • BRAF testing differentiates sporadic CRC from Lynch syndrome.
    • Absence of BRAF mutation predicts response to epidermal growth factor receptor inhibitors.
    • BRAF mutation indicates a worse prognosis in microsatellite-stable CRC.
    • Multiple BRAF mutations activate the MAPK pathway, promoting tumor growth.

    Conclusions:

    • BRAF mutation status is a critical biomarker in colorectal cancer.
    • Accurate detection and interpretation of BRAF mutations are essential for personalized patient care.
    • Pathologists are vital in ensuring the quality and clinical relevance of BRAF testing.