Necrotizing pneumonia

Histologic changes: The confluent grey nodules in the right upper lobe were surrounded by a hyperemic, consolidated zone (the brighter red parenchyma). Organisms were present throughout the consolidated area, but necrosis was present only in the grey zone. The GMS stain (below) shows the radiating growth of organisms as on a culture plate. Note the acute-angled, dichotomous branching of the aspergillus.

Clinical summary Discussion

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