A to Z: Atresia, Biliaryenparentshttps://kidshealth.org/EN/images/headers/P-khAZDictionary-enHD-AR1.jpgLearn about congenital defects and conditions that affect vessels, valves, and passages in the heart and other organs.atresia, biliary atresia, choanal atresia, anal atresia, imperforate anus, esophageal atresia, tricuspid atresia, pulmonary atresia, aortic atresia, heart defects, congenital defects, heart, aorta, digestive tract, nasal passages, heart valves, CD1Heart Surgery, CD1Birth Defects, CD1Heart Care, CD1Hepatology02/18/201303/18/201909/02/20199fe62777-c813-44f2-9c44-dec055c9fc4bhttps://kidshealth.org/ws/RadyChildrens/en/parents/az-atresia-biliary.html/<p><a href="https://kidshealth.org/ws/RadyChildrens/en/parents/dictionary/"><img class="right" title="Parents image" src="https://kidshealth.org/EN/images/buttons/P-atoZDictionary-enBT.jpg" alt="A to Z Dictionary 500 Go" name="5093-P_ATOZDICTIONARY2_ENBT.JPG" /></a></p> <p>Atresia (ah-TREE-zhah) is a condition in which a baby is born with a missing or closed valve or tube somewhere in his or her body.</p> <p>Biliary atresia, a defect in the liver or bile system, means the ducts that carry bile from the liver to the gallbladder are blocked. This can lead to liver damage and cirrhosis of the liver.</p> <h3>More to Know</h3> <p>Air, <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/blood.html/">blood</a>, bodily fluids, and waste products travel throughout the body in a system of vessels, tubes, and chambers that are often separated by valves. When a child is born with atresia, it means that a valve is missing or a tube is closed off. This interrupts the normal flow of blood, fluid, waste, or air, which can lead to a number of complications.</p> <p>Most kinds of atresia are serious and can be fatal if they go untreated. Treatment usually involves <a class="kh_anchor">surgery</a> while the child is still an infant.</p> <p>Atresia can affect many body parts, including the nose, ears, organs, <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/digestive.html/">digestive</a> tract, and heart. The types of atresia are named for the body parts they affect:</p> <ul class="kh_longline_list"> <li><a href="https://kidshealth.org/ws/RadyChildrens/en/parents/az-atresia-choanal.html/">Choanal atresia</a> is a defect of the nasal passages (choana).</li> <li><a href="https://kidshealth.org/ws/RadyChildrens/en/parents/az-atresia-anal.html/">Anal atresia</a> (imperforate anus) and <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/az-atresia-esophageal.html/">esophageal atresia</a> are defects of the digestive tract.</li> <li><a href="https://kidshealth.org/ws/RadyChildrens/en/parents/az-atresia-tricuspid.html/">Tricuspid atresia</a>, <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/az-atresia-pulmonary.html/">pulmonary atresia</a>, and <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/az-atresia-aortic.html/">aortic atresia</a> involve valves in the <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/heart.html/">heart</a>.</li> </ul> <h3>Keep in Mind</h3> <p>Most kinds of atresia can be treated successfully with surgery; some cases may require more than one operation.</p> <p><em>All A to Z dictionary entries are regularly reviewed by KidsHealth medical experts.</em></p>
A to Z: CholangitisLearn more about infections and problems of the liver and biliary tract.https://kidshealth.org/ws/RadyChildrens/en/parents/az-cholangitis.html/0df8de9c-7910-4f18-bcca-0c341b5dc1fc
A to Z: JaundiceLearn about jaundice, when the skin and whites of the eyes appear yellow due to excess bilirubin in the blood.https://kidshealth.org/ws/RadyChildrens/en/parents/az-jaundice.html/ff478595-ff39-4d4a-bff5-c509ead305a6
Ultrasound: AbdomenDoctors order abdominal ultrasounds when they're concerned about symptoms such as abdominal pain, repeated vomiting, abnormal liver or kidney function tests, or a swollen belly.https://kidshealth.org/ws/RadyChildrens/en/parents/ultrasound-abdomen.html/33055ca9-f928-4031-a2c2-190faf1cbabe
When Your Child Needs a Liver TransplantIf your child needs a liver transplant, you're probably feeling lots of emotions. Fortunately, most kids who have liver transplants go on to live normal, healthy lives.https://kidshealth.org/ws/RadyChildrens/en/parents/liver-transplant.html/74340ca2-6b5b-4b7e-85f5-4db45aee1e9a
X-Ray Exam: AbdomenAn abdominal X-ray can help find the cause of many abdominal problems, such as pain, kidney stones, intestinal blockage, a hole in the intestine, or an abdominal mass such as a tumor.https://kidshealth.org/ws/RadyChildrens/en/parents/xray-abdomen.html/9bff6dae-3d53-4392-988b-4c09372f0c58