Related Experiment Video
Updated: Jul 21, 2025
07:44
Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction
Published on: March 25, 2022
5.8K
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
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.
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.
Related Concept Videos
01:26Endoscopic Procedures V: ERCP
399
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...
Patient...
399
01:29Chronic Pancreatitis II: Collaborative Care
113
The management of chronic pancreatitis is multifaceted, involving a comprehensive approach that includes thorough assessment, diagnostic testing, and a variety of management strategies.
Assessment:
Assessment:
113
01:30Acute Pancreatitis II: Clinical Manifestations and Management
150
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...
150
01:17Gallbladder
628
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.
The gallbladder's anatomy consists of three regions: the fundus, body, and neck. Extending from the neck, the cystic duct joins...
The gallbladder's anatomy consists of three regions: the fundus, body, and neck. Extending from the neck, the cystic duct joins...
628
01:29Appendicitis-II: Diagnostic Studies and Management
99
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:
Diagnosing Appendicitis
It requires a multifaceted approach, starting with a detailed physical examination to pinpoint the location and nature of the pain and identify any associated symptoms. Laboratory tests play a crucial role. A complete Blood Count (CBC) typically reveals leukocytosis (an increased number of...
Diagnosing Appendicitis
It requires a multifaceted approach, starting with a detailed physical examination to pinpoint the location and nature of the pain and identify any associated symptoms. Laboratory tests play a crucial role. A complete Blood Count (CBC) typically reveals leukocytosis (an increased number of...
99
01:24Chronic Pancreatitis I: Introduction
116
The pancreas, an elongated and flat gland situated behind the stomach, serves a vital function in digesting food and managing blood sugar levels.
Pancreatitis is the inflammation of the pancreas, which occurs when the immune system becomes active and causes swelling, pain, and disruptions in organ function. Pancreatitis can manifest as either an acute or chronic condition.
Acute pancreatitis arises suddenly and lasts for a brief duration, while chronic pancreatitis is a long-term affliction...
Pancreatitis is the inflammation of the pancreas, which occurs when the immune system becomes active and causes swelling, pain, and disruptions in organ function. Pancreatitis can manifest as either an acute or chronic condition.
Acute pancreatitis arises suddenly and lasts for a brief duration, while chronic pancreatitis is a long-term affliction...
116