Pigments

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Pigments

  1. 1. In the alveolar spaces and in the septa are hemosiderin-laden macrophages.
  2. 2. Hemosiderin is golden yellow to brown
  3. 3. hepatocytes and Kupffer cells here are full of granular brown deposits of hemosiderin from accumulation of excess iron in the liver
  4. 4. bile
  5. 5. Lipofuscin
  6. 6. Lipofuscin • The pale golden brown finely granular pigment seen here in nearly all hepatocytes is lipchrome (lipofuscin). One such deposit within a hepatocyte is marked by the arrow. This is a "wear and tear" pigment from the accumulation of autophagolysosomes over time. This pigment is of no real pathologic importance.
  7. 7. lipofuscin
  8. 8. melanin
  9. 9. melanin
  10. 10. anthracosis
  11. 11. Coal dust from inhaled particulates in coal mines is phagocytized by macrophages but not eliminated

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