Keratosis obturans and external auditory canal cholesteatoma
. Laryngoscope 1980; 90: 383-91.
In 2015, the Japan Otological Society (JOS) has proposed staging and classification criteria for middle ear cholesteatoma
to provide a basis for meaningful exchange of information pertaining to cholesteatoma
treatment [2, 3].
Microscopic inside out mastoidectomy starting from atticotomy is an improvement in microscopic cholesteatoma
Its surgical application has been described in a number of pathologies, most notably cholesteatoma
, tympanic membrane perforation, ossicular chain disruption/ fixation, and cochlear implantation.
or epidermoid cyst is a cystic mass-like lesion originating from the aberrant ectoderm trapped within the petrous apex.
The patients were divided into 2 groups based on the presence or absence of cholesteatoma
: 50 COM with cholestatoma (COMC) and 50 COM without cholesteatoma
was present in the antrum, periantral, retrofacial, retrolabyrinthine, sinodural angle, tip cells, and around the sinus plate.
In the last surgery which was performed approximately 4 years prior to presentation, the patient underwent right radical mastoidectomy due to recurrent cholesteatoma
. The patient had no specific medical history.
is the most common neoplasm located at the CPA,[sup] and it wraps up the abducens nerve and grows toward the ventral side of pons.
The importance of Eustachian tube dysfunction (ETD) as it relates to the pathogenesis of middle ear disease and cholesteatoma
cannot be overstated.
is a rare keratinizing stratified squamous epithelium found ectopically in the middle ear, an area characterized by low cuboidal epithelium.
Basic radiologic patterns of cholesteatoma
described on CT scan were assessed.