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November 1997


Arch Otolaryngol Head Neck Surg. 1997;123(11):1236-1240. doi:10.1001/archotol.1997.01900110090012

Imaging Quiz Case 1  Catherine P. Winslow, MD; Michael L. Lepore, MD; Denver, ColoA 3-year-old boy presented to the otolaryngology clinic for evaluation of possible hearing loss. The patient's mother had suspected that her son might have a hearing loss involving his left ear. There was no family history of hearing loss. The child had been carried to term during a normal pregnancy and was delivered without complications. Since birth, he had had only 2 episodes of otitis media, both of which had responded to antibiotic therapy, with no complications. He had no vestibular symptoms, and otologic examination revealed normal tympanic membranes with good mobility. The findings of examination of the cranial nerves were unremarkable. An audiogram revealed a profound sensorineural hearing loss (SNHL) in the left ear, with absent reflexes, and normal hearing and reflexes in the right ear. A computed tomographic scan of the temporal bones was performed, and the results are shown in Figure 1 through Figure 6.What is