Skip to main contentLast updated: 08-Nov-2026
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Dr Harsh Shah
MS, MCh (Surgical Gastroenterology), DrNB (Surgical Gastroenterology)
Registered with Gujarat Medical Council, Reg. No. G-38738
Gastro & Cancer Surgeon
Dr. Jivraj Mehta Hospital, Vasna, Ahmedabad · 18 years of experience
In short
Caroli disease is a birth condition in which the bile ducts inside the liver are widened into small sacs.
The sacs hold stagnant bile. This leads to stones, repeated infection and, over many years, a small added chance of bile duct cancer.
The treatment depends on where the sacs lie. One part of the liver can be removed. Spread through the whole liver needs medicines, and sometimes a transplant opinion.
This post explains the Caroli type of the condition. The full picture of bile duct cysts, from the first scan to the operation, is on our choledochal cyst and Caroli treatment page.
It is a condition present from birth. The bile ducts inside the liver are widened into sacs that still join the normal bile channels.
Before birth, the liver builds its bile ducts from a sleeve of cells that grows around each blood vessel. In Caroli disease this sleeve does not mature as it should. The ducts stay stretched and uneven.
Doctors call it Type V in the usual list of bile duct cysts. It differs from the other types, because those lie outside the liver. Caroli disease sits inside it.
Because the sacs still connect to the bile channels, bile, stones and scan dye can flow in and out of them. This helps tell it apart from the simple, closed cysts that many people carry in the liver.
Bile moves slowly inside a sac. It settles, forms stones and lets germs grow, so the problem is infection and blockage, not the sac itself.
A widened sac does not hurt on its own. The trouble starts when bile stagnates. Soft, dark stones form and block the flow. Germs then climb up from the gut and cause an infection of the bile ducts, called cholangitis.
Over the years, repeated infection can scar the liver. This is why the diagnosis matters even when the first attacks settle with antibiotics.
Caroli disease means widened bile ducts alone. Caroli syndrome means the same, plus scarring of the liver and often a kidney condition.
The two forms are managed differently, so it is worth asking your doctor which one you have.
| Feature | Caroli disease | Caroli syndrome |
|---|---|---|
| Bile duct sacs | Present | Present |
| Scarring of the liver from birth | Absent | Present |
| Raised pressure in the liver’s blood vessels | Uncommon | Common |
| Kidney cysts | Usually none | Often present |
| Main problem | Stones and infection | Infection, plus bleeding from swollen veins and kidney issues |
| Usual age when found | Any age, often a young adult | Childhood or young adult life |
In the syndrome, a young person may have a big spleen and a low platelet count. Swollen food-pipe veins may bleed, though liver function stays normal early on. Kidney checks and family counselling are then part of the plan.
An ultrasound often raises the doubt. An MRI of the bile ducts, called MRCP, confirms it and shows how far the sacs spread.
A contrast scan may show a tiny dot inside each widened duct. This “central dot sign” is a blood vessel running through the sac, and it is a strong clue. A special MRI dye that enters the sacs proves they join the bile channels.
Mapping matters more than the label. The scan must show whether the sacs sit in one part of the liver or run through both sides. That single finding steers the treatment.
If the sacs lie in one part, removing that part treats the infection and the cancer risk. Widespread disease is managed with medicines and drainage.
| Pattern | Usual approach | Why |
|---|---|---|
| Sacs in one lobe or segment | Operation to remove that part of the liver | Removes the source of infection and the diseased lining |
| Both sides, liver working well | Medicines, prompt antibiotics, stone clearance | No safe part to remove |
| Both sides, repeated serious infection or liver failure | Opinion from a liver transplant team | A new liver is the only way to remove the disease |
| Syndrome with kidney failure | Joint liver and kidney assessment | Both organs are affected |
Ursodeoxycholic acid is a tablet that thins the bile. It may reduce stone formation, though it does not change the sacs.
During an attack, culture-guided antibiotics are given early. Any abscess is drained through the skin. Stones can be cleared with a scope or through a thin tube placed through the liver.
Joining the sacs to the bowel to drain them is not advised. It leaves the diseased lining in place and can make infections worse.
A small number of people develop bile duct cancer inside the liver over many years. The risk is higher with long-standing infection and retained stones.
Cancer can hide behind the picture of repeated infection. A new tight narrowing, a lump on the scan or a sudden change in how you feel needs fresh imaging. Another course of antibiotics is not enough.
This is one reason we advise removing a diseased part of the liver when it is possible. Our page on intrahepatic cholangiocarcinoma explains this cancer and how it is treated.
Many people reach a surgeon late, after years of fever and stones. A good scan map still helps, because it shows which treatment is realistic.
Bring every report, discharge paper and scan, along with a list of the antibiotics you have had. We look for the pattern and ask about kidney tests. Then we tell you plainly if an operation can help, or if the plan is medicines and regular review.
If a transplant opinion is the right step, we help you reach a transplant team. We keep looking after the infections and follow-up here.
No. A choledochal cyst lies outside the liver. Caroli disease lies inside it. Doctors list both in one group, but they behave differently.
It is present from birth. Some forms run in families and are linked to a kidney cyst condition. A child or young adult with the syndrome should have kidney checks and family counselling.
Bile stagnates in the sacs, forms stones and lets germs grow. Each blockage can start another infection of the bile ducts.
They treat each attack, but do not remove the cause. If the sacs are in one part of the liver, an operation is the better long-term answer.
Not usually. A transplant opinion is for widespread disease with repeated serious infection, liver failure, or when the liver scarring is advanced.
Infections and raised liver vessel pressure can add risk. Plan pregnancy only after a full review with your liver doctor and surgeon.
Your doctor sets the schedule from your pattern of disease. Any new narrowing, lump or change in how you feel needs fresh imaging, not only antibiotics.
See one when the scan shows sacs in only one part of the liver. See one when infections keep returning, or for a second opinion on your reports.
For the whole pathway of bile duct cysts, start at the choledochal cyst and Caroli treatment page. For questions before you travel, call +91-63555-64601.
Dr Harsh Shah — Dr. Jivraj Mehta Hospital, Vasna, Ahmedabad
Dr. Jivraj Mehta Hospital, Dr Jivraj Mehta Marg, Vasna, Ahmedabad 380007.
Consultations, review of reports and scans, operations and follow-up. OPD Monday to Saturday, 9 am to 5 pm.
Appointments: +91-63555-64601 · +91-63590-11009 · Hospital 079-2663 6363
Directions to the hospital · WhatsApp +91-63555-64601
Fever, shivering and yellow eyes that keep coming back? Cysts inside the liver's bile ducts can be the hidden reason. Dr Harsh Shah reviews your scans and blood reports. He explains what type you have. He tells you plainly if an operation, medicines or a transplant opinion is the sensible path. Call, or message us on WhatsApp. Call +91-63555-64601 Ask on WhatsApp
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