Vasculidites

Question 1

__ is a characteristic of all ANCA-associated vasculidites

Answer 1

Fibrinoid necrosis of small vessels

Question 2

Answer 2

Microscopic polyangiitis

Fibrinoid necrosis and acute inflammatory infiltrate in the vascular wall without granulomas.

Question 3

Answer 3

Granulomatosis and polyangiitis

Fibrinoid necrosis and acute inflammatory infiltrate in the vascular wall WITH granulomas, without eosinophils.

Question 4

Answer 4

Eosinophilic granulomatosis and polyangiitis

Fibrinoid necrosis and acute inflammatory infiltrate in the vascular wall WITH granulomas, WITH eosinophils.

Question 5

Hypocomplementemic urticarial vasculitis

Answer 5

Sometimes called anti-C1q vasculitis, HOWEVER anti-C1q may also be seen in HCV-related vasculidites and other rheumatologic disorders (RA, PAN, GCA, Felty syndrome, SLE, vascular Behcet’s disease, cryoglobulin-associated vasculitis)