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  • 1990-1994  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    Signatur Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Histopathology 22 (1993), S. 0 
    ISSN: 1365-2559
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Analysis of 25 liver biopsy specimens and one autopsy specimen from 26 Japanese patients (23 women and three men) with idiopathic portal hypertension revealed findings that collectively appeared diagnostic for the condition. Changes in the portal tract included capillary dilatation, phlebosclerosis, and fibro-elastosis of the stroma. Many portal veins were dilated and had herniated into the surrounding hepatic parenchyma. Portal vein obliteration and loss of bile ducts were a rare complication. The acinar architecture was disturbed by: 1 capillary and necro-infiammatory bridging, mostly between portal tracts and terminal hepatic veins; 2 the formation of isolated megasinusoids in a random distribution; 3 displaced and abnormally large hepatic vein branches with or without phlebosclerosis and 4 slender, curved fibrous septa (hairline septa). Early nodular regeneration was found in 25% of the cases. Our review supports the contention that incomplete septal cirrhosis may be a late manifestation of idiopathic portal hypertension. It is not clear whether the biopsy findings in Japanese patients differ only in severity from those in western patients, or whether the conditions differ pathogenetically. Some histopathological findings in the Japanese cases, in particular the necroinflammatory changes, are difficult to reconcile with portal hypertension as a primary haemodynamic abn rmality.
    Type of Medium: Electronic Resource
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