What is the role of fibrin cuffs in the pathogenesis of stasis dermatitis?

Updated: Mar 27, 2020
  • Author: Scott L Flugman, MD; Chief Editor: Dirk M Elston, MD  more...
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Answer

Subsequently, the phenomenon of fibrin cuff formation was found in more severe disease, such as venous ulceration. Fibrin cuffs are not found in ulcers due to causes other than venous hypertension. Decreased cutaneous fibrinolytic activity has been proposed to contribute to the formation of fibrin cuffs. [4, 5, 6]

Formation of fibrin cuffs, coupled with decreased fibrinolysis, results in the dermal fibrosis that is the hallmark of advanced stasis dermatitis. Activated leukocytes become trapped in fibrin cuffs and the surrounding perivascular space, releasing inflammatory mediators that contribute to inflammation and fibrosis. [7] These leukocytes release transforming growth factor-beta1, an important mediator of dermal fibrosis.


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