الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Cholesteatomas are formed of stratified squamous epithelium that has been desquamated and keratinized, generating a mass. Histologically, they are similar to epidemoid cysts.
Cholesteatomas frequently grow and destroy the temporal bone, so they cause hearing loss, hemifacial palsy, labyrinthitis, and brain abscess.
HRCT is the primary imaging method for middle ear cholesteatoma before surgery, but it can’t differentiate cholesteatoma from existing inflammation and fluid.
All patients with suspected cholesteatomas should have conventional non-contrast magnetic resonance imaging with diffusion-weighted imaging. This is especially important for individuals who have had prior cholesteatoma surgery, as it allows for the accurate detection of recurrence or residual tumor.
The aim of this study is to analyze the value of different diffusion weighted magnetic resonance techniques in the diagnosis of middle ear cholesteatoma.
This prospective study was conducted from February 2022 to August 2023 on 30 patients referred to the Radio-diagnosis Department at the Alexandria Main University Hospital. 10 patients in the study had history of tympanomastoidectomy.
Our study included 30 patients, 18 females and 12 males with age range from 13 years to 65 years with a mean age of 39.2 years.