This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': 'Tophi in gout found in all regions except - \nSelect and explain. \nA. Joint capsule, B. Skin, C. Muscle, D. Aicular cailage', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Joint capsuleo Tophi are pathognomic of gout. They are formed by large aggregations of urate crystals. The urate crystals are surrounded by ?a) Macrophages c) Large foreign body giant cellsb) LymphocytesThey are seen in the?a) Aicular cailages of joints d) Achilles tendonb) Periaicular ligaments e) Ear lobesc) Tendons and soft tissueso Less common sites of involvement are ?a) Kidney c) Skin of the finger tips, palms or soles.b) Nasal cailage", 'role': 'assistant'}]