| portoenterostomy | An operation for biliary atresia in which a Roux-en-Y loop of jejunum is anastomosed to the hepatic end of the divided extravascular portal structures, including rudimentary bile ducts. Synonym: Kasai operation. (05 Mar 2000) |
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| portoenterostomy, hepatic | Operation for biliary atresia by anastomosis of the bile ducts into the jejunum or duodenum. (12 Dec 1998) |