Cutaneous small vessel vasculitis
- Small vessel vasculitides with cutaneous involvement
- Most cases are idiopathic
- Types
- Immune complex mediated vasculitides
- Cryoglobulinaemic vasculitis
- IgA vasculitis = Henoch Schönlein purpura
- Urticarial vasculitis
- ANCA-associated vasculitides
- Granulomatosis with polyangiitis
- Eosinophilic granulomatosis with polyangiitis
- Immune complex mediated vasculitides
- Common clinical features
- Palpable purpuras
- Erythematous papules
- Urticaria
- Systemic symptoms
- Fever
- Myalgia
- Arthralgia
- Renal disease
- Prognosis
- 90% spontaneously resolve within months
- 10% become chronic or recurrent