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Related Concept Videos

Endoscopic Procedures II: Colonoscopy01:25

Endoscopic Procedures II: Colonoscopy

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:
Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy

This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and solid...
Assessment of the Rectum and Anus01:25

Assessment of the Rectum and Anus

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.
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
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...
Cancer Prevention02:59

Cancer Prevention

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.
Some...
Cancer Prevention02:59

Cancer Prevention

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.
Some...

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Related Experiment Video

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

Colorectal cancer screening.

Randall W Burt1

  • 1Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah 84112, USA. randall.burt@hci.utah.edu

Current Opinion in Gastroenterology
|July 29, 2010
PubMed
Summary
This summary is machine-generated.

Colon cancer screening is effective and evolving. New guidelines and screening tools like fecal immunochemical testing improve early detection, though challenges remain with colonoscopy effectiveness.

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Colorectal Cancer Cell Surface Protein Profiling Using an Antibody Microarray and Fluorescence Multiplexing
15:17

Colorectal Cancer Cell Surface Protein Profiling Using an Antibody Microarray and Fluorescence Multiplexing

Published on: September 25, 2011

Related Experiment Videos

Last 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

Colorectal Cancer Cell Surface Protein Profiling Using an Antibody Microarray and Fluorescence Multiplexing
15:17

Colorectal Cancer Cell Surface Protein Profiling Using an Antibody Microarray and Fluorescence Multiplexing

Published on: September 25, 2011

Area of Science:

  • Gastroenterology
  • Oncology
  • Preventive Medicine

Background:

  • Colon cancer screening has demonstrated effectiveness over the past two decades.
  • Recent advancements include virtual colonoscopy and stool DNA screening, though recommendations vary.
  • Established methods like fecal occult blood testing have evolved, with fecal immunochemical testing showing advantages.

Purpose of the Study:

  • To summarize the current state of colon cancer screening.
  • To review recent screening guidelines and address discrepancies.
  • To evaluate the efficacy and challenges of various screening modalities.

Main Methods:

  • Review of recently published colon cancer screening guidelines.
  • Evaluation of current screening modalities, focusing on efficacy and limitations.
  • Synthesis of research on the effectiveness of different screening approaches.

Main Results:

  • Colon cancer screening is proven effective, with ongoing improvements.
  • New screening modalities are available, but consensus on their use is lacking.
  • Fecal immunochemical testing offers benefits over older stool tests.
  • Concerns regarding colonoscopy effectiveness, particularly in the proximal colon, have been identified.

Conclusions:

  • Colon cancer screening remains a vital tool for early detection and prevention.
  • Continuous refinement of guidelines and screening technologies is essential.
  • Further quality studies are imperative for both existing and novel screening tests.