This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urinary tract, Subject name: Pathology
In Wegner's glomerulonephritis, the characteristic features seen in 
Select and explain. 
A. Focal necrotizing glomerulonephritis, B. Granulomas in the vessels wall, C. Interstital granulomas, D. Nodular glomerulosclerosis
A: Focal necrotizing glomerulonephritis
Answer: A: Focal necrotizing glomerulonephritis 
Explanation: Wegener's granulomatosis is a necro-inflammatory lesion having 4 components granulomas of the upper respiratory tract, granulomas of the lungs, systemic vasculitis (page 403) and focal necrotizing glomerulonephritis. Ref: Harsh Mohan textbook of pathology 6th edition page 495.