The anatomic distribution of bronchopneumonia and lobar pneumonia.
Bronchopneumonia Vs lobar pneumoniaGross view of lobar pneumonia with gray hepatization. The lower lobe is uniformly consolidated
Lobar pneumonia
A, Acute pneumonia. The congested septal capillaries and extensive neutrophil exudation into alveoli corresponds to early red hepatization. Fibrin nets have not yet formed. B, Early organization of intra-alveolar exudates, seen in areas to be streaming through the pores of Kohn (arrow). C, Advanced organizing pneumonia, featuring transformation of exudates to fibromyxoid masses richly infiltrated by macrophages and fibroblasts.
Stages of Streptococcus (Pneumococcal) pneumoniae