This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nose and paranasal sinuses, Subject name: ENT
[{'content': 'All are true anout mucormycosis, except: \nSelect and explain. \nA. Lymph invasion, B. Angio invasion, C. Long term deferoxime therapy, D. Septate hyphae', 'role': 'user'}, {'content': 'Answer: C \nExplanation: B,C and D Mucormycosis is caused by Rhizopus species,Rhizomucus and Absidia species. It has marked predilection for vascular invasion leading to widespread thrombosis,tissue necrosis and gangrene. Characterstic nasal finding is a dark necrotic turbinate surrounded by pale mucosa blackish discharge and crusts M/C site is middle turbinate followed by middle meatus and septum. IOC-Mri while biopsy is confirmatory Treatment:Includes amphotericin-B,heparin,hyperbaric oxygen and debridement. Ref Current Otolaryngology 3/e,p 295.', 'role': 'assistant'}]