Pigmentation Flashcards
1
Q
What are the four pigments created by the breakdown of haeme?
A
Haematin, Hb, Haemosiderin, Bilirubin
2
Q
What pigment is associated with old bruises and appears golden in colour?
A
Haemosiderin
3
Q
What is the cause of pre-hepatic icterus?
A
Excessive haemolysis to the point the liver cannot cope
4
Q
What is the cause of post-hepatic icterus?
A
Blockage in liver or bile duct so cannot escape
5
Q
What disease is caused by the deposition of sodium urate crystals?
A
Gout
6
Q
What is the difference between dystrophic and metastatic calcification?
A
metastatic is a result of high calcium levels in normal tissue whereas dystrophic is the result of deposition of calcium in necrotic tissue.
7
Q
What is the name for the ‘wear and tear’ pigment?
A
Lipofuscin.
