34.下列有關Wegener’s granulomatosis之敘述，何者最正確？
(A)血中可測到antiproteinase-3抗體
(B)黑人較白人常見
(C)腎切片＞50%組織，可見到肉芽組織（granuloma）
(D)此病在眼部不會造成結膜炎及鞏膜炎（scleritis）

Renal histology — The severity of the renal biopsy findings in GPA and MPA generally parallel the severity of the clinical presentation, ranging from mild focal and segmental glomerulonephritis in patients with asymptomatic hematuria and normal or near-normal renal function to a diffuse necrotizing and crescentic glomerulonephritis in patients with acute kidney injury. Patients with GPA, but not MPA, may have granulomatous changes, although granulomas are rarely found in renal biopsy specimens, even among patients with well-documented GPA. Arteritis is occasionally seen