Hemorrhagic infarct lung
![Hemorrhagic infarct lung Hemorrhagic infarct lung](pathology_atlas_imagini/hemorrhagic_infarct_lung.jpg)
Pulmonary infarct (hemorrhagic infarct of the lung) is an area of ischemic necrosis produced by venous thrombosis on a background of passive congestion of lung. In infarct area, alveolar walls, vascular walls and bronchioles are necrotic. They appear eosinophilic (pink), homogenous, lacking the nuclei, but keep their shapes - "structured necrosis". Alveolar lumens from infarcted area are invaded by red blood cells - hemorrhagic infarct (red). (H&E, ob. x10)
Hemorrhagic infarct lung (detail)
![Hemorrhagic infarct lung (detail) Hemorrhagic infarct lung (detail)](pathology_atlas_imagini/hemorrhagic_infarct_lung_detail.jpg)
Pulmonary infarct in an area of passive congestion. The hemosiderin-laden macrophages present inside the alveolar lumen are witnesses of pre-existent passive congestion. (H&E, ob. x20)
Hemorrhagic infarct lung venous thrombosis
![Hemorrhagic infarct lung venous thrombosis Hemorrhagic infarct lung venous thrombosis](pathology_atlas_imagini/hemorrhagic_infarct_lung_venous_thrombosis.jpg)
Pulmonary (hemorrhagic) infarct produced by venous thrombosis. (H&E, ob. x10)
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