This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nephrotic Syndrome, Subject name: Pathology
[{'content': "The pathological feature in Wegener's granulomatosis on renal biopsy is: \nSelect and explain. \nA. Nodular glomerulosclerosis, B. Focal necrotizing glomerulonephritis, C. Granulomas in the vascular wall, D. Granuloma of parenchyma of kidney", 'role': 'user'}, {'content': "Answer: B \nExplanation: 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).", 'role': 'assistant'}]