Histology Course A III 20 Department of Pathology, University of Zurich Histology Course

A III 20 endocardial fibroelastosis Orcein-Sirius  
  ICD-10: I42.4
 
   
2-year-old child succumbs to progressive heart failure (specimen from autopsy).
 
- Diffuse fibroelastic thickening of the endocardium.
- At higher magnification collagenous and elastic fibers arranged in parallel.