Skip to main contentLast updated: 07-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
Bile Duct & Gastro Surgeon
Dr. Jivraj Mehta Hospital, Vasna, Ahmedabad · 18 years of experience
In short
A bile duct injury is found by putting together your symptoms, a few blood tests and scans. No single test settles it alone.
An MRCP scan draws a map of the bile ducts. It shows whether bile is leaking, whether a duct is blocked, and where.
The map comes first, before any repair is planned. A repair planned without it can miss the real site of the injury.
The causes, the treatment options and the full course of care are on our bile duct injury after gallbladder surgery page. This post answers one question: how is the injury found and mapped?
The usual clues are yellow eyes, a swollen or tight belly, bile-coloured fluid in the drain, fever and a slow recovery after a simple gallbladder operation.
Most people feel well after keyhole gallbladder surgery and go home quickly. If you stay unwell, or become unwell again within days or weeks, the surgeon looks for a cause. A bile duct injury is one of the causes that must not be missed.
These signs can also come from a retained stone or an infection. That is why tests follow, and why no one should guess.
Liver function tests show whether bile flow is blocked. A rise in bilirubin and in the enzymes ALP and GGT points to a blocked duct.
A blood count and inflammation markers show whether infection is present. If the report suggests infection, treatment for it starts at once, even before the map is complete. A sick, infected patient is first made stable. The detailed repair is planned later.
Ultrasound and CT show a collection of fluid, widened bile ducts inside the liver, or free fluid in the belly. They suggest a problem, but they do not map the duct.
An ultrasound is quick and can be done at the bedside. A CT scan with contrast shows the fluid collection in more detail and helps the surgeon decide if it needs a drain. Neither scan shows exactly where the duct is cut or closed.
| Test | What it shows |
|---|---|
| Liver function tests | Whether bile flow is blocked |
| Ultrasound | Fluid in the belly, widened ducts |
| CT scan | Size and place of a fluid collection |
| MRCP scan | A map of the ducts, leak or blockage |
| ERCP | A leak from inside, with a chance to treat it |
| PTC (liver puncture) | The ducts above a complete block |
An MRCP is an MRI of the bile ducts. It needs no needle into the duct and draws the whole tree, so it is usually the key scan.
The scan shows where the duct above the injury ends, how long the gap or the narrow part is, and whether the left and right liver ducts are still joined. When bile is leaking, a special contrast given into a vein can show the leak itself. The surgeon uses this map to choose between a stent and an operation.
ERCP is used when a leak is suspected, because the same test can place a stent and stop it. A liver puncture test (PTC) is used when the duct is completely blocked.
In ERCP, a thin scope goes through the mouth to the opening of the bile duct, and dye is passed in. If the duct is partly torn, a stent can bridge the tear. If the duct is fully cut or clipped, the dye does not pass above it, and the test cannot help much.
For that case, a fine needle is passed through the skin into a duct in the liver. Dye is passed in, and a drain may be left to let the bile out. It is done under local anaesthesia and sedation, guided by ultrasound or X-ray.
Surgeons grade the injury by the site and the kind of damage. The grade guides the choice between a drain with a stent and a repair operation.
The surgeon also notes how high the injury is, close to the liver or lower down. The higher it lies, the more careful the repair needs to be. The repair itself is a separate topic, covered in the hub page above.
Bring the discharge card, the operation note, every scan and blood report, and the drain chart if one was kept. These save time and repeat tests.
The operation note tells us what the first surgeon saw and did. Scans on a disc or in a phone folder are more useful than printed pictures alone. Please also note the dates of your fever and when the yellow colour began.
If you travel from another city, carry the original scan files. We will tell you which tests are still needed and which need not be repeated.
Call at once for fever with chills, deepening yellow colour, severe belly pain, repeated vomiting, or a drain that fills with bile. Do not wait for the next appointment.
Chills with fever can mean infection in the bile ducts. This needs a quick check and often urgent drainage. Early care keeps the later repair simpler.
By putting together symptoms, liver blood tests and scans. An MRCP scan usually gives the clearest map of the ducts, and it shows whether bile is leaking or a duct is blocked.
It is an MRI of the bile ducts. It needs no needle into the duct. It shows where the duct is narrowed, cut or leaking, and how the left and right liver ducts are joined.
Both. The dye shows a leak from inside, and a stent can be placed in the same sitting. If the duct is fully blocked, the dye will not pass and another test is needed.
A fine needle is passed through the skin into a bile duct in the liver, and dye is injected. It shows the ducts above a complete block. A drain may be left to let the bile out.
Yes. An ultrasound shows fluid or widened ducts, but not the exact point of injury. A normal ultrasound does not rule out an injury if you stay unwell.
No. The tests are chosen one by one, based on your reports. Some people need only an MRCP, while others need ERCP or PTC as well.
As soon as yellow eyes, bile in the drain, fever or a swollen belly follow gallbladder surgery. Early mapping makes the next step safer and simpler.
For the full picture of bile duct injury and its care, start at the bile duct injury after gallbladder surgery 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
Has someone told you that your bile duct may have been hurt during gallbladder surgery? Dr Harsh Shah goes through your scans, blood reports and the operation notes with you, and explains which test is still needed. Bring every report to the visit. You can also call, or message us on WhatsApp. Call +91-63555-64601 Ask on WhatsApp
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