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
Most characteristic finding in diabetic nephropathy is 
Select and explain. 
A. Diffuse glomerusclerosis, B. Nodular glomerulosclerosis, C. Diffuse coical sclerosis, D. Renal atherosclerosis
B: Nodular glomerulosclerosis
Answer: B: Nodular glomerulosclerosis 
Explanation: Refer Robbins page no 1118 Almost all patients with Type I diabetes develop some evidence of functional change in the kidneys within two to five years of the diagnosis. About 30 to 40 percent progress to more serious kidneydisease, usually within about 10 to 30 years. Diabetic nephropathy (diabetic kidney disease) is kidney damage that results from having diabetes. Having high blood glucose levels due to diabetes can damage the pa of the kidneys that filters your blood. The damaged filter becomes 'leaky' and lets protein into your urine.