1. In the alveolar spaces and in the septa
are hemosiderin-laden macrophages.
2. Hemosiderin is golden yellow to
3. hepatocytes and Kupffer cells here are full of granular brown deposits
of hemosiderin from accumulation of excess iron in the liver
• 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
11. Coal dust from inhaled particulates in coal mines is phagocytized by
macrophages but not eliminated