In Wegner's glomerulonephritis, the characteristic features seen in
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.
Focal necrotizing glomerulonephritis
Granulomas in the vessels wall
Interstital granulomas
Nodular glomerulosclerosis
Urinary tract