Related Experiment Video
Updated: Aug 4, 2026
07:44
Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction
Published on: March 25, 2022
Choledocholithiasis associated with malignant biliary obstruction--significance and management
1Department of Radiology, Raigmore Hospital, Inverness, UK.
Clinical Radiology
|February 17, 1998
Summary
Distal bile duct stones can coexist with malignant biliary obstruction, particularly cholangiocarcinoma. These stones may complicate treatment and diagnosis, sometimes obstructing stents.
Area of Science:
- Gastroenterology
- Hepatology
- Interventional Radiology
Background:
- Malignant biliary obstruction is a serious condition often requiring intervention.
- The coexistence of distal bile duct stones with proximal malignant biliary obstruction is not well-characterized.
- Gallbladder stones are frequently associated with bile duct stones.
Purpose of the Study:
- To investigate the incidence and significance of distal bile duct stones in patients with proximal malignant biliary obstruction.
- To determine the relationship between distal bile duct stones, cholangiocarcinoma, and gallbladder stones.
- To assess the impact of these stones on treatment and diagnosis.
Main Methods:
- Retrospective analysis of 60 patients undergoing percutaneous biliary drainage for proximal malignant biliary obstruction.
- Review of patient records for evidence of distal common bile duct stones, gallbladder stones, and tumor type.
- Analysis of stone management strategies (endoscopic removal, percutaneous removal, or in situ observation).
Main Results:
- Distal bile duct stones were found in 11.6% (7/60) of patients with proximal malignant biliary obstruction.
- All seven patients with distal stones also had gallbladder stones.
- In 18.5% (5/27) of cholangiocarcinoma patients, distal bile duct stones were present, sometimes obstructing stents.
- No stones were found proximal to the malignant obstruction.
Conclusions:
- Distal common bile duct stones are associated with proximal malignant biliary obstruction, especially cholangiocarcinoma.
- The presence of these stones may interfere with stent function and complicate diagnostic imaging.
- Coexisting gallbladder stones are common in patients with both conditions.
More Related Videos
04:02Laparoscopic Cholecystectomy with Indocyanine Green Fluorescence: Choledochoscopic Stone Extraction and Primary Duct Suture
Published on: November 25, 2025
05:22Intraoperative Strategy under Complex Vascular Adhesion for Laparoscopic Radical Resection of Bismuth-Corlette Type IIIb Perihilar Cholangiocarcinoma
Published on: February 13, 2026
Related Concept Videos
01:17Chronic Bowel Disorders: Introduction
Chronic bowel diseases are a group of long-term conditions affecting the digestive tract, characterized by inflammation and damage to the gut lining. These conditions primarily include irritable bowel syndrome and inflammatory bowel disease.
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
01:30Acute Pancreatitis II: Clinical Manifestations and Management
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...
01:26Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations
Renal calculi, commonly termed kidney stones, are crystalline solid masses that form in the kidneys but can occur at any point within the urinary system, encompassing the kidneys, ureters, bladder, and urethra.The pathophysiology of renal stones involves several key factors: supersaturation of the urine with stone-forming constituents, changes in urine pH, a decrease in urine volume, and the presence of substances that promote or inhibit stone formation.Supersaturation of Urine: This is the...
01:28Urinary Tract Calculi V: Nursing Management
AssessmentSubjective Data: Obtain a detailed health history, including any recent or chronic urinary tract infections, periods of immobilization, previous episodes of renal calculi, and medical conditions such as gout, benign prostatic hyperplasia, or hyperparathyroidism. Review the medication history for drugs that may influence stone formation, including allopurinol, analgesics, loop diuretics, or thiazide diuretics. Document the use of long-term indwelling catheters and any past surgical...
01:11Pyloric Obstruction
Pyloric obstruction, also referred to as gastric outlet obstruction, is a condition characterized by narrowing or blockage at the pylorus—the muscular valve regulating the flow of stomach contents into the duodenum. When this passage becomes impaired, the stomach cannot effectively empty its contents into the small intestine. This disruption leads to a range of gastrointestinal symptoms, including early satiety, bloating, epigastric pain, postprandial nausea, persistent vomiting, and...
01:20Cholecystitis
Cholecystitis is inflammation of the gallbladder, most commonly caused by obstruction of the cystic duct. This blockage prevents bile from draining, leading to gallbladder distension, inflammation, and potentially serious complications. This condition may present acutely or chronically and can happen with or without gallstones.EtiologyAbout 95% of cholecystitis cases are calculous, caused by gallstones blocking the cystic duct, leading to bile accumulation and inflammation of the gallbladder...