Zunaira saleh3 months ago

Lobar pneumonia

Lobar pneumonia, grey hepatisation stage. A, The sectioned surface of the lung shows grey-brown, firm area of consolidation (liver-like) affecting a lobe (arrow). B, The cellular exudates in the alveolar lumina is lying separated from the septal walls by a clear space. The infiltrate in the lumina is composed of neutrophils and macrophages.