Classification of Cholesteatoma According to Growth Patterns.

Importance: Several classifications of cholesteatoma exist, but there are controversies about their clinical application.

Objective: To classify cholesteatomas and describe the prevalence of the subtypes.

Design, Setting, And Participants: A cross-sectional comparative study of 414 ears in 356 consecutive patients with middle ear cholesteatoma and no history of ear surgery treated at a tertiary hospital was conducted from March 8, 2000, to March 30, 2015.

The impact of chronic suppurative otitis media on children's and teenagers' hearing.

Objective: Otitis media is the most common otological condition during childhood which compromises sound conduction in the middle ear. In chronic cases, it is estimated that the degree to which hearing is compromised is directly proportional to the damage caused to the middle ear's structures. It means that hearing thresholds may be influenced by factors such as the size and location of the tympanic perforation, the presence of ossicular chain erosion or disarticulation as well as the presence of cholesteatoma and its growth patterns.