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Malignant Otitis Externa%u2022Non-malignant extension of otitis externa into mastoid and temporal bonesDefinition:%u2022 Severe ear pain and headache%u2022 Purulent foul discharge%u2022 Conductive hearing loss (in severe cases)Presentation:%u2022 P. aeruginosa%u2022 S. aureusCommon organisms:%u2022Old age%u2022Diabetes, immunocompromised stateRisk factors:
