Pigmentation -causes – 
1. Addison disease
2. Cushing syndrome
3. ectopic ACTH secretion –
4. hemochromatosis
5. Cirrhosis
6. CKD
7. pregnancy
8. malnutrition
9. medications – tetracyclins
10. postinflamatory
11. venous stasis ( with blood)
12. cappilaritis ( with blood)
 
 
Redish brown pigmentation of venous stasis
 
 
Capillaritis –
 
 
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