Quantitative assessment of the subepithelial collagen band does not increase the accuracy of diagnosis of collagenous colitis.

نویسندگان

  • Carlos A Rubio
  • Abiel Orrego
  • Anders Höög
  • Anja Porwitz
  • Fredrik Petersson
  • Göran Elmberger
  • Axel Glaessgen
  • Elina Eriksson
  • Lena Kanter
  • Georg Jaremko
  • Lars Egevad
  • Juan Laforga
  • M Liljefors
  • Britta Löfdahl
  • Peter Norman
  • Olle Larsson
  • Robert Wanat
  • Johan Wejde
  • Peter Zickert
  • Jan Björk
  • Saverio Caini
  • Domenico Palli
  • Gabriella Nesi
چکیده

The thickness of eosinophilic band in collagenous colitis (CC) was assessed by 3 methods: histologic estimates (22 observers), conventional measurements using a calibrated micrometric scale (1 observer), and semiautomatic micrometric measurements (1 observer). By the histologic estimate technique, 7.4% of the results failed to diagnose CC; by calibrated micrometry, the failure was 6% and by semiautomatic micrometry, 6%. The main difficulty in measuring the thickness of the CC band is that the deeper border of the band appears fuzzy and hairy-irregular. CC should be defined not exclusively on the basis of the thickness of the collagen table, but as a microscopic constellation characterized by a distorted superficial cell arrangement, with areas of epithelial denudation and inflammatory cells in the superficial epithelium and the lamina propria. In agreement with Lazenby's statement: "Focusing solely on the collagen band can result in both over- and underdiagnosis"

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عنوان ژورنال:
  • American journal of clinical pathology

دوره 130 3  شماره 

صفحات  -

تاریخ انتشار 2008