Updated: 4/25/2017

Infarcts

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  • Overview
    • Decreased tissue oxygen results in reduced ATP production and cell death
    • Can occur in two forms
      • Red
        • hemorrhagic due to the re-entry of blood into the tissue following cell death
        • associated with
          • loose tissues with collaterals such as
            • liver (portal and systemic)
            • lungs (pulmonary and bronchial)
            • intestine (portal and systemic)
          • lysis of an emboli that initially obstructed blood flow
      • Pale
        • pale due to continued inability of blood to re-enter the infarcted area
        • associated with
          • solid tissues with single blood supply such as
            • heart
            • kidney
            • spleen
          • atherosclerotic thrombi that cannot be lysed due to continued reformation at site of obstruction

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