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Related Concept Videos

Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy

Sigmoidoscopy and laparoscopy are distinct medical procedures that enable physicians to internally inspect different parts of the GI tract. Although they serve different purposes, each is essential for diagnosing and, in some cases, treating various medical conditions.
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
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:
Endoscopic Procedures I: Esophagogastroduodenoscopy01:29

Endoscopic Procedures I: Esophagogastroduodenoscopy

An Esophagogastroduodenoscopy (EGD) is a diagnostic procedure in which an endoscopist uses a flexible, lighted endoscope to visualize the upper gastrointestinal (GI) tract. The procedure includes visualizing the oropharynx, esophagus, stomach, and the first part of the small intestine, the duodenum.
During an EGD, the endoscope can be used to:
Endoscopic Studies I: Bronchoscopy and Thoracoscopy01:30

Endoscopic Studies I: Bronchoscopy and Thoracoscopy

Endoscopy is a non-surgical medical technique used to examine a person's internal organs and vessels. This lesson will focus on two types of endoscopic studies: bronchoscopy and thoracoscopy.
Bronchoscopy
Description
Bronchoscopy is a procedure that involves direct visualization of the larynx, trachea, and bronchi for diagnostic and therapeutic purposes. A flexible fiber optic or rigid bronchoscope is used to carry out the procedure. The fiber-optic bronchoscope is more frequently used due to...
Endoscopic Procedures III: Video Capsule Endoscopy01:28

Endoscopic Procedures III: Video Capsule Endoscopy

Capsule endoscopy, or wireless or video capsule endoscopy, is a diagnostic procedure for examining the entire gastrointestinal tract. Patients swallow a capsule about the size of a vitamin tablet. The capsule is equipped with a transmitter, a battery, an LED light source, and a color video camera to capture images throughout the gastrointestinal tract. This procedure is particularly useful for diagnosing conditions such as Crohn's disease, ulcerative colitis, tumors, polyps, ulcers, unexplained...
Endoscopic Procedures V: ERCP01:26

Endoscopic Procedures V: ERCP

Endoscopic Retrograde Cholangiopancreatography (ERCP) is a diagnostic procedure that combines endoscopy and fluoroscopy to diagnose and treat conditions related to the bile ducts, pancreatic ducts, and gallbladder. This procedure is beneficial for identifying and addressing blockages, gallstones, strictures, and tumors within the biliary or pancreatic systems. ERCP is both diagnostic and therapeutic, offering the ability to visualize and treat identified problems in one session.
Patient...

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Updated: Jun 5, 2026

Clinical Application of Single-Surgeon, Three-Port, Laparoscopic Resection for Colorectal Cancer with Natural Orifice Specimen Extraction
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Sigmoidoscopy in general practice.

S R Glaser

    Canadian Family Physician Medecin De Famille Canadien
    |January 21, 2011
    PubMed
    Summary
    This summary is machine-generated.

    Rigid sigmoidoscopy effectively detects colorectal polyps and cancers during routine screenings and diagnostic procedures. This study highlights its value in identifying neoplastic lesions and early-stage cancers in private practice.

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    Structured Approach to Colonoscopy Technique Optimization: A Single-Center Experience with Novice Endoscopists

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    Area of Science:

    • Gastroenterology
    • Colorectal Surgery
    • Oncology

    Background:

    • Rigid sigmoidoscopy is a common endoscopic procedure for examining the lower gastrointestinal tract.
    • Evaluating the efficacy of rigid sigmoidoscopy in detecting colorectal neoplasia is crucial for cancer prevention strategies.

    Purpose of the Study:

    • To assess the yield of polypoid lesions and colorectal cancers detected via rigid sigmoidoscopy.
    • To compare findings from routine screening examinations versus diagnostic procedures.

    Main Methods:

    • A consecutive series of 961 rigid sigmoidoscopic examinations were performed between 1977 and 1986.
    • Procedures were analyzed based on indication (routine vs. diagnostic), cancer risk, occult blood presence, and comparison with other detection methods.

    Main Results:

    • Routine examinations identified 89 polypoid lesions (12.9%), including neoplastic polyps and two carcinomas in situ.
    • Diagnostic procedures revealed 35 neoplastic polyps, with two invasive carcinomas and one carcinoma in situ.
    • Other colorectal conditions like ulcerative proctitis were also diagnosed.

    Conclusions:

    • Rigid sigmoidoscopy demonstrates significant value in detecting neoplastic polyps and early colorectal cancers.
    • The procedure is effective for both routine case finding and diagnostic evaluations in a private practice setting.