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Region Hovedstaden - en del af Københavns Universitetshospital
Udgivet

Diverticular bile duct lesion in chronic active hepatitis.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskning

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  • M Vyberg
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Liver needle biopsies from patients with non-A, non-B chronic active hepatitis and so-called abnormal bile duct epithelium were studied with a three-dimensional method. Photographs of bile duct structures in serial sections were transferred to acrylic plates. Five bile duct lesions of a not previously described diverticular type were revealed. The diverticuli were of varying shape with a diameter of 30 to 110 microns and a length of 75 to 150 microns budding from small (12 to 25 microns), slightly ectatic bile ducts. The diverticular epithelium was disordered. Some cells appeared as bile duct cells, but most were larger, with rounded nuclei, prominent nucleoli and abundant eosinophilic cytoplasm, sometimes with periodic acid-Schiff-positive, diastase-resistant granules. The lesions were only partly surrounded by a basement membrane. They were all embedded in a tight mononuclear inflammatory infiltrate associated with pronounced periportal piecemeal necrosis. In two cases, a germinal center was adjacent to the epithelium. The pathogenesis of the diverticular bile duct lesion is unknown, but the diverticuli probably represent Hering ducts and groups of periportal liver cells which have escaped the piecemeal necrosis.
Bidragets oversatte titelDiverticular bile duct lesion in chronic active hepatitis.
OriginalsprogEngelsk
TidsskriftHepatology
Vol/bind10
Udgave nummer5
Sider (fra-til)774-780
Antal sider7
ISSN0270-9139
StatusUdgivet - 1989

ID: 32503007