This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Orthopaedics
[{'content': 'What is the most likely diagnosis of this case? \nSelect and explain. \nA. Osteo myelitis, B. Gout, C. Vasculitis, D. RA', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B. GoutIn this there is swelling and inflammation in great toe. This due to inflammation in the synovial membrane of joint. This is also known as podagra.', 'role': 'assistant'}]