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
[{'content': 'Contracted kidneys are seen in all of the following diseases except \nSelect and explain. \nA. Chronic glomerulonephritis, B. Chronic renal failure, C. Amyloidosis, D. Analgesic nephropathy', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Amyloidosis (am-uh-loi-DO-sis) is a rare disease that occurs when a substance called amyloid builds up in your organs. Amyloid is an abnormal protein that is produced in your bone marrow and can be deposited in any tissue or organ. Amyloidosis can affect different organs in different people, and there are different types of amyloid. Amyloidosis frequently affects the hea, kidneys, liver, spleen, nervous system and digestive tract. Severe amyloidosis can lead to life-threatening organ failure. Refer robbins 8/254', 'role': 'assistant'}]