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Abstract
A total of 33 consecutively operated aural cholesteatomas were analysed with regard to preoperative findings and correlated with the morphology of the cholesteatoma tissue. Patients were found in all age groups. 9/33 of the patients were operated at an age below 15 years. a persistent ear discharge had occurred in all patients but in 9 cases the patient history was of less than one year. Impaired hearing was found in 29/33. a demineralization of ossicles was observed at X-ray also in cases in which the ossicular chain appeared normal at operation. in only 5/33 cases was there a retraction of the tympanic membrane without a perforation. the morphological features were the same in both very rapidly and very slowly growing cholesteatomas.