What causes Urticarial vasculitis?

Related questions

1. Does vasculitis run in families?
2. How is Urticarial vasculitis treated?
3. What does vasculitis look like on legs?
4. Is Behcet's disease serious?
5. Is vasculitis an auto immune disease?
6. What does vasculitis of the skin look like?
7. Is vasculitis a cancer?
8. Can urticaria be cured permanently?
9. What does it mean when your temples hurt to touch?
10. What triggers Behcet's Disease?

Tags

1. #inflammatory
2. #virus
3. #erythematosus
4. #arthritis
5. #autoimmune
6. #infection
7. #reaction
8. #urticarial
9. #motion
10. #cancer
11. #existence
12. #process
13. #another
14. #hepatitis
15. #syndrome
16. #systemic
17. #vasculitis
18. #disorder
19. #rheumatoid
20. #lupus