25. Fibrinous pericarditis – cor villosum

Page created on October 8, 2018. Last updated on October 11, 2022 at 17:03

Organ: Heart + pericardium


Everywhere on the surface of the pericardium can a thin, network like diffuse material be seen. In some parts it looks like a spider-web.

Diagnosis: Cor villosum = fibrinous pericarditis

Causes (from most to least common):

  • Uraemia
    • Due to end-stage chronic renal failure
  • Infection
    • Mostly viral infection, mostly from the coxsackie virus
  • Systemic lupus erythematosus
  • Rheumatic fever


Fibrinous pericarditis is a type of fibrinous acute inflammation. The exudate is fibrinous, meaning that it contains fibrin.

The label on the pictures should be “fibrinous” not “fibrous”.

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