What is the function of the cystic duct?
What is the function of the cystic duct?
A tube that carries bile from the gall bladder. It joins the common hepatic duct to form the common bile duct. It is part of the biliary duct system.
How does choledochal cyst cause obstruction?
Stone and protein plug formation in the distal common bile duct and pancreatic duct causes obstruction and resultant pancreatitis.
Why does Chledochal cyst cause jaundice?
The classic triad of intermittent abdominal pain, jaundice, and a right upper quadrant abdominal mass is found only in minority of patients. In infants, choledochal cysts usually lead to obstruction of the bile ducts and retention of bile. This leads to jaundice and an enlarged liver.
What are the symptoms of choledochal cyst?
Symptoms of Choledochal Cyst
- Yellow color to the eyes and skin (jaundice)
- Pain in the upper-right belly (upper-right-quadrant pain)
- Soft mass that can be felt in the upper-right belly.
- Pale or clay-colored stools (feces)
- Fever, if they have an infection (cholangitis)
What happens when cystic duct is blocked?
Cystic duct obstruction is the precipitating event that results in inflammation of the gallbladder by cytokines and other mediators (lysolecithin, prostaglandins) of inflammation. The obstruction is usually caused by a stone, but mucus, sludge, and viscous bile may also play a role.
What happens if cystic duct is blocked?
When a blockage occurs in any of the bile ducts, bile accumulates within nearby structures. As bile builds up in the liver, it causes jaundice and other symptoms, such as nausea, vomiting, and upper abdominal pain.
How rare is a choledochal cyst?
Choledochal cysts are rare: one in every 100,000 to 150,000 children in Western countries is born with choledochal cysts. Girls are four times more likely to be affected than boys. The condition is more common in East Asian countries, especially Japan, though researchers do not know why.
What is the treatment of choledochal cyst?
How are choledochal cysts treated? Children with choledochal cysts need surgery to remove them. This involves removing a lobe of the liver if the cysts are intrahepatic, or part of the duct outside of the liver if the cysts are located there. This surgery also includes biliary reconstruction using a piece of intestine.
How rare is choledochal cyst?
What is the most common type of choledochal cyst?
Type I cysts (see image below) are the most common and represent 80-90% of choledochal cysts. They consist of saccular or fusiform dilatations of the common bile duct, which involve either a segment of the duct or the entire duct.
Can a blocked bile duct unblock itself?
Obstruction of any of these bile ducts is referred to as a biliary obstruction. Many of the conditions related to biliary obstructions can be treated successfully. However, if the blockage remains untreated for a long time, it can lead to life-threatening diseases of the liver.
What kind of cyst is a choledochal cyst?
Choledochal cysts represent congenital cystic dilatations of the biliary tree. Diagnosis relies on the exclusion of other conditions (e.g. tumor, gallstone, inflammation) as a cause of biliary duct dilatation.
What causes a cyst on the bile duct?
Due to this anomaly, there is a large common channel draining pancreatic and bile duct. Thus the pancreatic juices cause cholangitis and bile duct wall destruction, which together with distal stenosis due to scarring result in the formation of a choledochal cyst.
When does a baby with a choledochal cyst become jaundice?
Infants who have been diagnosed to have a choledochal cyst prenatally do not ordinarily become jaundiced until 1 to 3 weeks after birth. Both saccular and fusiform types of choledochal cyst may cause jaundice in infancy, although jaundice may be transient in fusiform malformations.
Can a choledochal cyst cause recurrent pancreatitis?
Pancreatic calculi can cause recurrent or chronic pancreatitis after cyst excision. 29 Guelrud et al. 30 showed that sphincter of Oddi dysfunction may be associated with APBD and choledochal cysts and could be a cause of acute recurrent pancreatitis.