Abstract
Liver specimens from 68 cases of biliary atresia were histologically studied in reference to postoperative prognosis. The histological findings were classified into 4 to 5 groups by the degree of fibrosis, bile duct proliferation, bile plugs, giant cell transformation, and intralobular cholestasis. Furthermore, morphometrical studies of interstitial area, bile duct (ductules), intrahepatic portal vein, and intrahepatic artery were done and correlated with the age of patients and with operative results. From this study, it was shown that 1) marked fibrosis (cirrhosis) and interstitial areas occupying more than 35% of the sectional area of the liver specimen, 2) severe ductular proliferation, shown by proliferated bile ducts occupying more than 20% of interstitial areas, 3) no or slight intralobular cholestasis and 4) marked interlobular cholestasis are considered to predict poor postoperative bile excretion.
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