Necrotizing external otitis caused by Aspergillus fumigatus: computed tomography and high resolution magnetic resonance imaging in an AIDS patient.
Most necrotizing (malignant) external otitis (NEO) occurs in diabetic patients and is commonly caused by Pseudomonas aeruginosa. We report an acquired immunodeficiency syndrome (AIDS) patient with NEO caused by Aspergillus fumigatus in which computed tomography (CT) showed destructive petrous bone involvement and magnetic resonance imaging (MRI) of the ear discovered extensive soft tissue and facial nerve involvement. Dedicated MRI studies of the ear in this type of pathology provide new insights relating to nerve dysfunction, that cannot be obtained with CT.
Muñoz
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Departamento de Radiodiagnóstico, Hospital Universitario 12 de Octubre, Madrid, Spain.
Martínez-Chamorro
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D017088:AIDS-Related Opportunistic Infections / Q000150:complications* / Q000473:pathology; D000328:Adult; D001228:Aspergillosis / Q000150:complications* / Q000473:pathology; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D010032:Otitis Externa / Q000150:complications / Q000382:microbiology* / Q000473:pathology; D010579:Petrous Bone / Q000473:pathology