Histology Course S IV 6 Department of Pathology, University of Zurich Histokurs

S IV 6 bronchopneumonia HE further information (German) on HiPaKu
  ICD-10: J18.0

76-year-old female with apoplexy; terminal presentation with pyrexia, dyspnoea and crepitations. Autopsy specimen.

Macroscopically: grey-yellow clusters of varying size, partly confluent. Fragile lung tissue, the effusion appears dull, increased consistency due to alveoli without air
- Alveoli and bronchi filled with numerous granulocytes and fibrin
- Clusters of alveolar macrophages
- Hyperaemia (active in inflammation, passive in heart failure) in the area of alveolar septa
- Possible fibrinous or fibrinous-pyogenic pleuritis

Typical inflammatory foci with bronchiolitis in the centre and pus in the neighbouring alveoli. Recent and older, ie chronically carnified clusters can occur next to each other. The clusters can become confluent and create the impression of a lobar pneumonia (pseudo-lobar pneumonia)