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: Microbiology
[{'content': 'True about mycetoma - \nSelect and explain. \nA. Commonly occurs in hands, B. Commonly erodes bone, C. Drains through lymphatics, D. Antibiotics has no role', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Mycetoma \n\nCommonly occurs in the foot.\nThe infection runs as a relentless course over many years, with the destruction of contiguous bone and fascia.\nSpread to distant sites does not take place (does not drain through lymphatics).\n\n\nActinomycetoma may respond to prolonged combination chemotherapy eg. streptomycin and dapsone.\n\nTreatment \nActinomycetoma\n\nMay respond to prolonged combination chemotherapy - Streptomycin and dapsone\xa0or streptomycin and cotrimoxazole.\n\nEumycetoma\n\nRarely respond to chemotherapy.\nSome cases caused by madurella mycetomatis may respond to ketoconazole or itraconazole.', 'role': 'assistant'}]