Generally 10% neutral buffered formalin.
Basic microscopic screening
- For screening of lung autopsies, see Lung autopsy
Mainly look for carcinoma. Further information: Lung tumor
If granulomas are seen, generally stain for acid-fast bacteria and fungi.
Active searching for them is not mandatory.
Anthracosis (interstitial black material).
Respiratory epithelial shedding in a small bronchus. If present, look for vascular leakage, mucus hypersecretion and/or widespread airway narrowing, together indicating asthma.