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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:
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...
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,...
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: May 29, 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

Screening for colorectal cancer.

Jin He1, Jonathan E Efron

  • 1Department of Surgery, The Johns Hopkins Hospital, 600 North Wolfe Street, Baltimore, MD 21287, USA.

Advances in Surgery
|September 30, 2011
PubMed
Summary
This summary is machine-generated.

Regular colorectal cancer screening for adults 50+ can prevent most deaths. Improving screening access and adherence, especially for underserved groups, is crucial for reducing cancer mortality.

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

Published on: September 25, 2011

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Last Updated: May 29, 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
  • Public Health
  • Health Behavior

Background:

  • Colorectal cancer (CRC) is a significant cause of death, with an estimated 60% of fatalities preventable through routine screening.
  • The
  • Katie Couric Effect" demonstrated celebrity endorsement's impact on increasing screening colonoscopies.
  • Millions remain unscreened, representing a missed opportunity to save lives.

Purpose of the Study:

  • To review current colorectal cancer screening strategies and guidelines.
  • To highlight the ongoing debate regarding optimal CRC screening methods and costs.
  • To emphasize the need for improved screening rates and reduced disparities.

Main Methods:

  • Review of current CRC screening guidelines and statistics.
  • Discussion of factors influencing screening adherence, including cost and patient preference.
  • Identification of priority areas for enhancing CRC screening quality and utilization.

Main Results:

  • A significant portion of colorectal cancer deaths are preventable with timely screening.
  • Despite evidence, 22 million Americans aged 50-75 are not screened for CRC.
  • Celebrity endorsement can positively influence screening behavior.

Conclusions:

  • Eliminating financial barriers and ensuring high-quality screening programs are essential.
  • Comparative effectiveness research is needed to guide optimal screening test selection.
  • Encouraging adherence and patient choice in screening methods can improve outcomes.