Topic Completed: 1 October 2013

Minor changes: 4 March 2019

Copyright: 2003-2015,, Inc.

PubMed Search: collagen[title]

Nat Pernick, M.D.
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Cite this page: Pernick N. Collagen. website. Accessed August 15th, 2020.
Definition / general
  • Type I collagen: dermis, tendons and bone
  • Type II collagen: cartilage
  • Type III collagen: fetal skin, scars, arterial walls
  • Type IV collagen: normal constituent of basement membrane surrounding noninvasive glandular epithelium; discontinuous or complete absence of basement membrane staining surrounding colonic adenocarcinoma (Am J Surg Pathol 2002;26:206)
Uses by pathologists
Microscopic (histologic) images

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CIN/VIN: double immunostaining with cytokeratin

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