Work

The prevalence and implications of marginal tympanic membrane perforations in cholesteatoma pathogenesis

Year: 2016

Type: article

Abstract: the growth pattern was undetermined.In group 2, 42% were PMC, 28.4% PEC, 18.5% both, and 11.1% of the patients had an undetermined growth pattern.There was no difference in the diagnosis of the principal ear between the two groups (p = 0.40).In the analysis of the CLE, in group 1, 35.7% of ears had pars tensa (PT) tympanic membrane (TM) retraction, 28.6% pars flaccida (PF) TM retraction, and 35.7% had both abnormalities.PT and PF retractions were present in 50% of children from group 2, and PT retraction only in 9.5% of this group.The differences between the two groups were statistically significant (p = 0.03).The CLEs of patients with AEC were normal.Conclusion: The majority of AEC was found in children younger than 12 years of age and all displayed a normal CLE, suggesting a probable congenital origin.PMC was the most prevalent in both the study groups.The most prevalent CLE abnormalities in children over 12 years of age were PT and PF TM retraction together, suggesting that the PT retractions could evolve and block epitympanum aeration resulting in a PF retraction.

Source: The Journal of Laryngology & Otology

DOI: 10.1017/s0022215116006757