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The following case is reported because of its unusual interest and because a similar one does not seem to have been recorded in the literature.
W. S., a white youth aged 20, came with the following complaint: He tried to enlist in the United States Navy and was rejected because of a bony tumor in the left auditory canal. Prior to this the patient had been completely unaware of the tumor. Examination revealed a hard mass covered by uninterrupted skin, protruding from the anterior superior wall of the left external auditory canal at about the junction of the cartilaginous and the bony portions. The mass reduced the lumen of the canal by two thirds. However, inspection with a small speculum showed a normal drum membrane behind it. Hearing tests gave negative results. Roentgenograms showed an irregularly triangular density, of which one corner protruded into the auditory canal and the remainder
KAPLAN S, DONLON JJ. BONY DERMOID CYST OF THE EXTERNAL AUDITORY CANAL RESEMBLING A DECIDUOUS TOOTH. Arch Otolaryngol. 1941;34(2):354–355. doi:10.1001/archotol.1941.00660040380013
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