The pathological feature in Wegener's granulomatosis on renal biopsy is:
Wegener's Granulomatosis : The renal lesions range from a mild/ early disease, where glomeruli show acute focal necrosis with thrombosis of isolated glomerular capillary loops (focal and segmental necrotizing glomerulonephritis). Advanced glomerular lesions are characterized by diffuse necrosis and parietal cell proliferation to form crescents (crescentic glomerulonephritis).
Nodular glomerulosclerosis
Focal necrotizing glomerulonephritis
Granulomas in the vascular wall
Granuloma of parenchyma of kidney
Nephrotic Syndrome