Clinical Aspects of Hepatolithiasis W. Takahashi 1 1The First Department of Surgery, Tohoku University, School of Medicine pp.399-404
Published Date 1984/4/25
DOI https://doi.org/10.11477/mf.1403106999
  • Abstract
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 In view of the type of gallstone, most intrahepatic gallstones are namely the calcium bilirubinate stones generated on the basis of bile stasis and bacterial infection. In all intrahepatic gallstone patients, their intrahepatic bile ducts show the dilatation with varying degrees, mostly coupled with the further extrahepatic bile duct dilatation. In nearly 60% cases, the dilating intrahepatic bile duct is accompanied with so-called stenosis, a marked narrowing in caliber. Many debates have been held about whether it indicates the presence of true stenosis or relative stenosis derived by the adjoined site of dilatation. Using cholangiography, the intrahepatic gallstones were classified into four types according to the presence or absence of such stenosis. The non-stenotic type and the lower stenotic type had been predominating in the past. Currently, the incidences of these types have shown to be decreasing and the upper stenotic type and intrahepatic stenotic type have rather been increasing in number. These changes may be attributed to the improvements of the diagnostic measures for hepatobiliary diseases, especially in the progress of imaging methods. Further efforts should be continued to clarify the etiology of the intrahepatic bile duct stenosis.

Copyright © 1984, Igaku-Shoin Ltd. All rights reserved.


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