Histology Course S III 6 Departement of Pathology, University of Zurich Histokurs

S III 6 old myocardial infarction Sirius further information (German) on HiPaKu
  ICD-10: I25.2
 
 

 
80-year-old male. Death following metastatic prostate cancer. Incidental finding on autopsy: scar in the left cardiac apex with triple vessel disease.

- In all wall layers the myocardium is penetrated by clusters of collagenous connective tissue (red).
- bBordering the scar are clusters of degenerated muscle fibres (partly with macrophages)
- Inner layer: the endocardium is fibrous and thickened, a rim of remaining muscle fibres remains. Enclosing individual vessels in inner layer are islands of remaining muscle fibres.