HAEMOCHROMATOSIS (Robbins pp 873)

on 2.12.07 with 0 comments



  • This disease is characterized by excess accumulation of iron in the body.
  • The majority of this goes to the liver. The excess accumulation occurs as a result of excess absorption from the gut.
  • This occurs due to a genetic defect or acquired defect. The genetic defect is in the gene which encodes a protein that is responsible for influencing iron absorption. The acquired defect is when patients take in excess iron by various sources (i.e.: transfusions etc).
  • Iron is directly toxic to hepatocytes: it stimulates collagen formation, and its directly injuries the DNA.
  • If the cell is not fatally injured, then reversing the effects will result in recovery, however – not otherwise.

Category: Pathology Notes

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