Vasculitis Bx findings

Question 1

Giant cell arteritis bx findings?

Answer 1

Granulomatous inflammation of the arterial media

Question 2

PAN bx findings?

Answer 2

Transmural inflammation of the arterial wall with fibrinoid necrosis

Question 3

Thromboangiitis obliterans bx findings?

Answer 3

Segmental, thrombosing vasculitis often extending into contiguous veins and nerves

Question 4

Takayasu arteritis bx findings?

Answer 4

Granulomatous inflammation of the arterial media

Question 5

Granulomatosis w/ polyangiitis bx findings?

Answer 5

Focal necrotizing vasculitis w/ granulomas

Question 6

Microscopic polyangiitis bx findings?

Answer 6

Segmental necrotizing vasculitis (world says fibrinoid necrosis)

Question 7

Henoch-Schonlein bx findings?

Answer 7

IgA complex deposition

Question 8

Churg-Strauss bx findings?

Answer 8

Granulomatous necrotizing vasculitis w/ eosinophilia

Question 9

Which vasculidities affect large arteries?

Answer 9

Temporal arteritis

Takayasu arteritis

Question 10

Which vasculidities affect medium arteries?

Answer 10

PAN
Kawasaki
Thromboangiitis obliterans

Question 11

Which vasculidities affect small arteries?

Answer 11

Granulomatosis w/ polyangiitis
Microscopic polyangiitis
Churg-Strauss
Henoch-Schonlein purpura