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How is Biliary Atresia diagnosed?

See how Biliary Atresia is diagnosed. Which specialists are essential to meet, what tests are needed and other useful information for the diagnosis of Biliary Atresia

Biliary Atresia diagnosis

Biliary atresia is a rare and serious liver disease that affects infants. It is characterized by the absence or blockage of the bile ducts, which are responsible for carrying bile from the liver to the gallbladder and small intestine. Without proper bile flow, the liver becomes damaged over time, leading to liver failure if left untreated. Early diagnosis and intervention are crucial for the management of biliary atresia.



Diagnosing biliary atresia involves a combination of clinical evaluation, imaging tests, and laboratory investigations. The process typically begins with a thorough physical examination of the infant, including a detailed medical history review and assessment of symptoms. The healthcare provider will look for signs such as jaundice (yellowing of the skin and eyes), pale stools, dark urine, and an enlarged liver.



Blood tests play a vital role in the diagnosis of biliary atresia. These tests help evaluate liver function and identify any abnormalities. The levels of liver enzymes, bilirubin, and other markers are measured to assess liver health. Elevated levels of bilirubin and liver enzymes, along with other specific patterns, can indicate liver damage and suggest the presence of biliary atresia.



Imaging studies are essential to visualize the bile ducts and confirm the diagnosis. The most commonly used imaging technique is an ultrasound, which uses sound waves to create images of the liver and bile ducts. In biliary atresia, an ultrasound may reveal an absence or narrowing of the bile ducts. However, ultrasound alone cannot provide a definitive diagnosis and is often followed by additional tests.



Hepatobiliary scintigraphy, also known as a HIDA scan, is another imaging test used to evaluate the liver and bile ducts. During this procedure, a radioactive tracer is injected into the infant's vein, which is then taken up by the liver and excreted into the bile ducts. The tracer's movement is tracked using a special camera, allowing the healthcare provider to assess the flow of bile. In biliary atresia, the tracer may not reach the intestines, indicating a blockage or absence of the bile ducts.



In some cases, a liver biopsy may be performed to confirm the diagnosis. During a liver biopsy, a small sample of liver tissue is obtained using a needle and examined under a microscope. This procedure helps assess the extent of liver damage and rule out other liver diseases that may present with similar symptoms.



Cholangiography is a specialized imaging technique that involves injecting a contrast dye into the bile ducts to obtain detailed X-ray images. It can be performed using different methods, such as percutaneous transhepatic cholangiography (PTC) or magnetic resonance cholangiopancreatography (MRCP). Cholangiography can provide precise information about the anatomy and condition of the bile ducts, aiding in the diagnosis of biliary atresia.



It is important to note that the diagnosis of biliary atresia requires a multidisciplinary approach involving pediatric hepatologists, radiologists, and surgeons. The combination of clinical evaluation, blood tests, imaging studies, and sometimes liver biopsy allows for an accurate diagnosis and timely intervention.



In summary, biliary atresia is diagnosed through a comprehensive evaluation that includes physical examination, blood tests, imaging studies (such as ultrasound, HIDA scan, and cholangiography), and occasionally a liver biopsy. Early detection and diagnosis are crucial for initiating appropriate treatment and improving the long-term outcomes for infants with biliary atresia.


Diseasemaps
2 answers
Blood Tests
Nuclear Med Scans
Ultrasounds
X-rays
Surgery

Posted May 21, 2017 by Nicole 900

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Our Girl was diagnosed before her second month, she have her KASAI on Nov 2010 and did't work we received a gift of life on 3-11 and because of complications she was listed again and received a second transplant one week after. We can help families...

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