Choledocholithiasis
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Choledocholithiasis".

Choledocholithiasis Classification and external resources
Common bile duct stone impacted at ampulla of Vater seen at time of ERCP
ICD-10	K80.5
ICD-9	574.3
DiseasesDB	33385
MedlinePlus	000274
eMedicine	med/350
MeSH	D042883

Fluoroscopic image of multiple common bile duct stones seen at the time of ERCP and duodenoscope assisted cholangiopancreatoscopy(DACP). The stone was impacted in the distal common bile duct and was crushed with intracorporeal lithotripsy.

Choledocholithiasis is the presence of gallstones in the common bile duct. This condition causes jaundice and liver cell damage, and is a medical emergency, requiring the endoscopic retrograde cholangiopancreatography (ERCP) procedure or surgical treatment.

A tendency for this disease can be inherited.

Cause

While stones can frequently pass through the common bile duct into the duodenum, some stones may be too large to pass through the CBD and may cause an obstruction.

Complications

This obstruction leads to jaundice, elevation in alkaline phosphatase, increase in conjugated bilirubin in the blood and increase in cholesterol in the blood. It can also cause acute pancreatitis and ascending cholangitis.

Diagnosis

MRCP image of two stones in the distal common bile duct

Doctors can use a blood test of alkaline phosphatase, bilirubin and cholesterol to diagnose choledocholithiasis.

However, ultrasound demonstrating an enlarged common bile duct is the test of choice.

Treatment

Treatment involves removing the stone using ERCP. Typically, the gallbladder is then removed to prevent a future occurrence of common bile duct obstruction.

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