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definitions

portoenterostomy

[pôr′tō-ĕn′tə-rŏs′tə-mē]
n.
  1. A surgical procedure for the treatment of biliary atresia in which a Roux-en-Y anastamosis is connected to the hepatic end of the divided extravascular portal structures, including the rudimentary bile ducts.Kasai operation
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.