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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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Chronic Pancreatitis II: Collaborative Care01:29

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The management of chronic pancreatitis is multifaceted, involving a comprehensive approach that includes thorough assessment, diagnostic testing, and a variety of management strategies.
Assessment:
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Acute Pancreatitis II: Clinical Manifestations and Management01:30

Acute Pancreatitis II: Clinical Manifestations and Management

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Acute pancreatitis presents a complex medical emergency characterized by rapid onset inflammation of the pancreas, demanding timely diagnosis and management to prevent complications. The condition primarily manifests through severe upper abdominal pain that often radiates to the back. This pain intensifies following the consumption of fatty foods. Accompanying symptoms such as nausea, vomiting, abdominal distention, fever, dyspnea, cyanosis, and jaundice can vary in intensity but significantly...
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Gallbladder01:17

Gallbladder

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The gallbladder is a small, pear-shaped organ that plays a crucial role in our digestive system. Measuring about 10 cm in length, it is comparable in size to a kiwi fruit and is located in a hollow area on the lower surface of the liver. The gallbladder's primary function is to store and concentrate bile, a fluid produced by the liver that aids in digestion.
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Appendicitis-II: Diagnostic Studies and Management01:29

Appendicitis-II: Diagnostic Studies and Management

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Diagnosing and managing appendicitis requires a structured and comprehensive approach that spans from initial assessment to postoperative care. Here is an overview of the process:
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Chronic Pancreatitis I: Introduction01:24

Chronic Pancreatitis I: Introduction

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The pancreas, an elongated and flat gland situated behind the stomach, serves a vital function in digesting food and managing blood sugar levels.
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Related Experiment Video

Updated: Jul 21, 2025

Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction
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Biliary Duct Dilatation: AJR Expert Panel Narrative Review.

Daniel R Ludwig1, Malak Itani1, David D Childs2

  • 1Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 S Kingshighway Blvd, Campus Box 8131, Saint Louis, MO 63110.

AJR. American Journal of Roentgenology
|July 26, 2023
PubMed
Summary

Biliary duct dilatation often appears incidentally and usually doesn't signal obstruction without symptoms or abnormal liver function tests (LFTs). This review offers guidance on interpreting LFTs and imaging for biliary duct dilatation management.

Keywords:
CTMRIbiliary duct dilatationbiliary enzymescholangiopancreatographycholecystectomyduct measurementobstructionultrasound

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Last Updated: Jul 21, 2025

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Laparoscopic Common Bile Duct Exploration in Patients with a Previous History of Biliary Tract Surgery
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Area of Science:

  • Radiology
  • Gastroenterology
  • Hepatology

Background:

  • Biliary duct dilatation is a frequent incidental finding.
  • Clinical presentation can be nonspecific, and liver function tests (LFTs) may be unreliable.
  • Accurate interpretation is crucial for appropriate patient management.

Purpose of the Study:

  • To provide consensus recommendations for managing biliary duct dilatation.
  • To clarify diagnostic criteria and interpretative challenges.
  • To guide further imaging and testing decisions.

Main Methods:

  • Expert Panel Narrative Review.
  • Question-and-answer format.
  • Discussion of LFT interpretation, imaging modalities, measurement techniques, and specific conditions.

Main Results:

  • Established criteria for biliary duct dilatation, considering factors like prior cholecystectomy and age.
  • Differentiated between dilatation with and without obstruction, including choledochal cysts and intraductal papillary neoplasms.
  • Provided recommendations for further investigations like endoscopic ultrasound and ERCP.

Conclusions:

  • Biliary duct dilatation requires careful evaluation, especially when LFTs are equivocal.
  • Specific diagnostic criteria and measurement techniques are essential.
  • A structured approach aids in differentiating benign findings from significant pathology.