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  • Title: [Morphological changes in the liver in primary sclerosing cholangitis (a histological and electron microscopic study)].
    Author: Popova IV, Beketova TP, Severov MV, Prokhorova MV.
    Journal: Arkh Patol; 1993; 55(3):21-5. PubMed ID: 7944963.
    Abstract:
    9 cases (males) of primary sclerosing cholangitis (PSC) were studied clinico-morphologically. In puncture liver biopsies, sclerosis of walls of big ducts and portal tracts was found in 2 cases only; cell infiltration was minimal. Lobular hepatitis with intralobular fibrosis and moderate sclerosis of portal stroma was found in 3 patients, monolobular inactive liver cirrhosis in 4 patients. In all cases mild intralobular cholestasis was found which was followed with a considerable increase of copper and manganese in the liver and serum. The accumulation of a large amount of collagen of different types was observed around bile ducts which ultrastructurally was seen as fibrillar structures and homogeneous substance similar to the basal membrane. The elements of the epithelium destruction were found in foci of the duct basal membrane alteration, in the absence of cell infiltration. Progressing fibrosis of both portal tracts without inflammation and individual segments of the bile ducts and the intralobular stroma is at the basis of PSC.
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