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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