What distinguishes a red (hemorrhagic) infarct from a pale (anemic) infarct?
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Correct answer: Red: dual-supply or venous-occluded tissue; pale: solid organs after arterial occlusion
Hemorrhagic (red) infarcts happen when there is venous occlusion or in tissues with dual blood supply (lung, intestine) allowing re-perfusion and hemorrhage. Pale infarcts occur in solid organs after arterial occlusion without reperfusion.
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