Current classification and staging of middle ear cholesteatoma

Czech version

Authors: T. Valenta ¹; Michal Homoláč ¹ ; L. Školoudík ^1,2; Jan Mejzlík ^1,2 ; Viktor Chrobok ^1,2
Authors‘ workplace: Klinika otorinolaryngologie a chirurgie hlavy a krku, Fakultní nemocnice Hradec Králové ¹; Univerzita Karlova, Lékařská fakulta v Hradci Králové ²
Published in: Otorinolaryngol Foniatr, 69, 2020, No. 4, pp. 172-176.
Category: Original Article

Overview

Introduction: In 2017, the European Academy of Otology and Neurotology and the Japanese Otological Society published Joint Consensus Statements on the Definitions, Classification and Staging of Middle Ear Cholesteatoma. The aim of this work is an application of the new classification system at the Department of Otorhinolaryngology and Head and Neck Surgery of the University Hospital Hradec Králové.

Material and Methods: Authors retrospectively revised a group of patients who underwent surgery for chronic otitis media with cholesteatoma in years 2013–2017. A total of 104 patients, 56 males and 48 females, were enrolled in the study.

Results: A total of 142 surgeries (77 primary, 65 secondary) revealed 116 cholesteatomas of which 3 remained unclassifiable. A congenital cholesteatoma was found in 4 patients, an acquired cholesteatoma was found in 70 cases (60.3%). The most common type was retraction pocket cholesteatoma (60 surgeries, 51.7%), with predominance of pars flaccida cholesteatomas. Acquired non-retraction pocket cholesteatomas were less common (10 surgeries, 8.6%), where secondary to tympanic membrane cholesteatomas predominated (6 surgeries, 5.2%). Of the 65 secondary surgeries, 39 cholesteatomas were found (33.6%), residual cholesteatomas were found in 20 patients (17.2%), and recurrent cholesteatomas were found in 19 patients (16.4%). Stage I cholesteatoma was found in 42 (36.2%) patients, stage II cholesteatoma in 60 (51.7%) patients, stage III cholesteatoma in 13 (11.2%) patients and stage IV cholesteatoma in a single patient (1.0%). Authors further examine incidence of cholesteatoma types in comparison with STAM sites.

Conclusion: New cholesteatoma classification systems have potential to build unified database of patients with chronic suppurative otitis media with cholesteatoma. It will be certainly a benefit to continue to prospectively expand the database.

Keywords:

classification – congenital cholesteatoma – staging – cholesteatoma – acquired cholesteatoma – definition – EAONO/JOS – STAM

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