PMC4501539_01
Macroscopic appearance of lung.
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fig1
Macroscopic appearance of lung.
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fig2
Extensive intrapulmonary hemorrhage.
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fig3
Microscopically, the lungs showed extensive hemorrhage (Fig. 3) with filling of alveolar spaces with fresh blood.
Hyaline membrane formation.
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fig4
There were areas of hyaline membrane formation (Fig. 4) with bright red material lining the alveolar spaces.
Usual interstitial pneumonia (UIP).
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fig5
There was subpleural interstitial fibrosis with some honeycombing, the findings being consistent with usual interstitial pneumonia (Fig. 5).
Peripheral interstitial fibrosis and blood.
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fig6
Trichrome stained sections showed peripheral interstitial fibrosis and blood (Fig. 6).
Hemosiderin.
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fig7
Iron stains showed hemosiderin (Figs. 7 and 8).
Hemosiderin.
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fig8
Iron stains showed hemosiderin (Figs. 7 and 8).