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Related Concept Videos

Endoscopic Procedures II: Colonoscopy01:25

Endoscopic Procedures II: Colonoscopy

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The colon, or large intestine, is the final segment of the digestive system. Its primary functions include absorbing water and vitamins produced by gut bacteria and transforming waste from liquid to solid to form stool. In adults, the large intestine is approximately 5 feet long and consists of four main sections:
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Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

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This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
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Assessment of the Rectum and Anus01:25

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Evaluating the rectum and anus plays a crucial role in conducting a thorough physical examination of the gastrointestinal system. Although it may be uncomfortable and often embarrassing for the patient, it holds immense diagnostic value, particularly in detecting gastrointestinal diseases and abnormalities. This guide will explain how to perform this assessment using inspection and palpation methods.
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Serum Laboratory Studies, Stool Test, Breath Test01:30

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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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Cancer Prevention02:59

Cancer Prevention

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Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
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Updated: Mar 31, 2026

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

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[Colorectal cancer screening].

Antoni Castells1

  • 1Servicio de Gastroenterología, Hospital Clínic, IDIBAPS, CIBERehd, Universitat de Barcelona, Barcelona, España.

Gastroenterologia Y Hepatologia
|November 2, 2015
PubMed
Summary
This summary is machine-generated.

Colorectal cancer screening, including fecal occult blood tests and colonoscopy, offers significant benefits. This review highlights key findings on screening strategies and reducing interval cancers post-colonoscopy.

Keywords:
AdenomaColonoscopiaColonoscopyColorectal neoplasiaCribadoCáncer de intervaloDetección de sangre oculta en hecesFaecal occult blood testInterval cancerNeoplasia colorrectalPrevenciónPreventionScreening

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Area of Science:

  • Gastroenterology
  • Oncology
  • Preventive Medicine

Background:

  • Colorectal cancer (CRC) significantly benefits from early detection through screening and secondary prevention.
  • Various screening strategies exist, with fecal occult blood testing (FOBT) and colonoscopy being widely adopted.
  • Population-based programs often utilize FOBT, while opportunistic screening favors colonoscopy.

Purpose of the Study:

  • To review key presentations on colorectal cancer screening from the 2015 American Gastroenterological Association annual congress.
  • To emphasize medium-term results of FOBT strategies and their influencing factors.
  • To discuss methods for minimizing interval cancers following colonoscopy.

Main Methods:

  • Review of scientific presentations from the 2015 American Gastroenterological Association annual congress.
  • Analysis of medium-term data for fecal occult blood testing (FOBT) efficacy.
  • Evaluation of strategies aimed at reducing post-colonoscopy interval colorectal cancer.

Main Results:

  • Fecal occult blood testing (FOBT) strategies demonstrate medium-term efficacy in colorectal cancer screening.
  • Factors influencing the effectiveness of FOBT have been identified.
  • Strategies to mitigate interval cancer development after colonoscopy are being explored.

Conclusions:

  • Colorectal cancer screening is crucial for managing malignancies.
  • FOBT and colonoscopy are primary screening modalities with distinct applications.
  • Ongoing research focuses on optimizing screening efficacy and reducing interval cancers.