us-abem MCQ (SBA): Necrotizing otitis externa

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HardInfectious DiseasesNecrotizing otitis externaus-abemus-usmle-step-2us-usmle-step-3

A 50-year-old man with poorly controlled diabetes presents with severe right ear pain, otorrhea, and granulation tissue in the external auditory canal. CT shows extension of infection into the skull base. What is the most likely diagnosis?

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