66. Pathologic pigmentation caused by hemoglobin and haemosiderin Flashcards
1
Q
Haemolysis →
A
Haemoglobinaemia
2
Q
Give the causes of haemolysis
A
- Autointoxication
- Chemicals
- Drugs
- Physical effects
- Pathogens
- Plant poisons
3
Q
Hemosiderin
A
Brown, iron containing , granular pigment that is found within cells ( like macrophage)
4
Q
Hemosiderin: Histology
A
- Prussian blue (Perl’s reaction)
- Turnbulls technique
5
Q
Forms of hemoglobin
A
- Sulfhaemoglobin: Greenish → Fades
- Methaemoglobin : Dark brown (nitrate posioning)
- Carboxi-haemoglobin: Cherry pink discolouration, clearly visible in the brain
formalin pigment: dark brown
6
Q
A