This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Joint disorders, Subject name: Anatomy
[{'content': 'Mael&;s sign is seen in which of the following condition \nSelect and explain. \nA. Rheumatoid ahritis, B. Osteoahritis, C. Gouty ahritis, D. Oochronosis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Mael&;s sign is seen in long standing cases of gouty ahritis * First acute attack: soft tissue swelling * Chronic tophaceous gout: Mael&;s sign --punched-out cystic erosions with overhanging bony edges, associated with soft tissue calcified masses. Refer Fundamentals of ohopedics by Nikil Mohindra p 354', 'role': 'assistant'}]