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Related Concept Videos

Endoscopic Procedures V: ERCP01:26

Endoscopic Procedures V: ERCP

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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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Endoscopic Procedures I: Esophagogastroduodenoscopy01:29

Endoscopic Procedures I: Esophagogastroduodenoscopy

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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:
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Endoscopic Studies I: Bronchoscopy and Thoracoscopy01:30

Endoscopic Studies I: Bronchoscopy and Thoracoscopy

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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...
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Upper GI Series: Barium Swallow01:24

Upper GI Series: Barium Swallow

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The Barium Swallow Study, or a Barium Esophagogram, is a diagnostic imaging method used to visualize the upper gastrointestinal (GI) tract, including the esophagus, stomach, and small intestine. It employs barium sulfate, a radiopaque contrast material, to provide clear images of the upper digestive system, helping to identify abnormalities, diseases, or structural issues.
Purpose and Procedure
Patients undergoing this procedure ingest a liquid containing barium sulfate with a chalky...
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Related Experiment Video

Updated: Sep 7, 2025

Substernal Thyroid Biopsy Using Endobronchial Ultrasound-guided Transbronchial Needle Aspiration
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Endobiliary biopsy.

Riccardo Inchingolo1, Fabrizio Acquafredda2, Alessandro Posa3

  • 1Interventional Radiology Unit, "F. Miulli" General Regional Hospital, Acquaviva delle Fonti 70021, Italy. riccardoin@hotmail.it.

World Journal of Gastrointestinal Endoscopy
|June 20, 2022
PubMed
Summary
This summary is machine-generated.

Diagnosing biliary strictures, whether benign or malignant, is complex. This review compares advanced endobiliary biopsy techniques for accurate tissue sampling, aiding treatment decisions.

Keywords:
Biliary stricturesCholangioscopyEndobiliary forceps biopsyEndoscopic retrograde cholangiographyIntraductal ultrasound-guided biopsyPercutaneous transhepatic

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Area of Science:

  • Gastroenterology
  • Interventional Radiology
  • Oncology

Background:

  • Differentiating benign from malignant biliary strictures presents diagnostic challenges.
  • Accurate tissue diagnosis is crucial for determining optimal therapeutic strategies.
  • Current methods like endoscopic ultrasonography-guided fine-needle aspiration have limitations for certain biliary stricture types.

Purpose of the Study:

  • To review and compare available endobiliary biopsy techniques for biliary strictures.
  • To evaluate the diagnostic performance of various endoscopic and percutaneous approaches.
  • To highlight advancements in tissue sampling for biliary stricture diagnosis.

Main Methods:

  • Review of current literature on endobiliary biopsy techniques.
  • Comparison of diagnostic yields of endoscopic retrograde cholangiopancreatography (ERCP) and percutaneous transhepatic cholangiography (PTC) based biopsies.
  • Focus on novel techniques including cholangioscopy and intraductal ultrasound-guided biopsy.

Main Results:

  • Tissue sampling is essential for definitive diagnosis of malignant biliary strictures.
  • Novel endobiliary approaches offer improved tissue acquisition compared to traditional methods.
  • The diagnostic value of EUS-guided biopsy is limited in intraductal infiltrating cholangiocarcinoma.

Conclusions:

  • Accurate tissue diagnosis of biliary strictures requires advanced biopsy techniques.
  • Endobiliary approaches, including cholangioscopy, are increasingly important for obtaining tissue samples.
  • Comparing the diagnostic performance of endoscopic and percutaneous biopsy methods is vital for clinical practice.