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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 19, 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.

R Scott Nelson1, Alan G Thorson

  • 1Section of Colon and Rectal Surgery, Creighton University School of Medicine, 9850 Nicholas Street, Suite 100, Omaha, NE 68114, USA.

Current Oncology Reports
|October 21, 2009
PubMed
Summary
This summary is machine-generated.

Colorectal cancer (CRC) screening is crucial for reducing cancer deaths. This review covers current CRC screening options for physicians to help stratify patient risk and improve compliance.

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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 19, 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:

  • Oncology
  • Preventive Medicine
  • Gastroenterology

Background:

  • Colorectal cancer (CRC) is a significant cause of cancer mortality in the United States.
  • Increased CRC screening has led to a documented decrease in incidence over the past 20 years.
  • Sustained efforts in screening are vital to maintain this positive trend.

Purpose of the Study:

  • To review current colorectal cancer screening options available to physicians.
  • To emphasize the importance of risk stratification for appropriate patient management.
  • To discuss various screening strategies for average-risk individuals.

Main Methods:

  • Literature review of current colorectal cancer screening guidelines and options.
  • Analysis of the role of different screening modalities.
  • Discussion of risk-based approaches to CRC screening.

Main Results:

  • Colonoscopy remains a key screening tool for colorectal cancer.
  • Multiple screening options exist for average-risk individuals.
  • Physician awareness of diverse screening methods is essential for effective patient care.

Conclusions:

  • Appropriate risk stratification and adherence to screening protocols are critical for CRC prevention.
  • Physicians must be knowledgeable about all available CRC screening options to best serve their patients.
  • Continued focus on screening strategies is necessary to further reduce CRC incidence and mortality.