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: ENT
[{'content': 'IDDM patient presents with septal perforation of nose with brownish black discharge, probable diagnosis is: \nSelect and explain. \nA. Rhinosporidiosis, B. Aspergillus, C. Leprosy, D. Mucormycosis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Mucormycosis is fungal infection of nose and paranasal sinuses which may prove rapidly fatal if untreated. It is seen in uncontrolled diabetes or in those taking immunosuppressive drugs. It presents as black necrotic mass filling the nasal cavity and eroding the septum and hard palate. Treatment is by amphotericin B and surgical debridement. Most common fungal infection of nose is Aspergillosis.', 'role': 'assistant'}]