Whenever patients complain of hearing loss or problems with the ear, they are generally given a variety of tests in order to make a diagnosis. A basic audiogram can be given to determine if hearing loss has occurred, and a tympanometry test examines the function of the middle ear. Through visually examining the ear, a doctor may be able to see the stretched ear drum sac and its contents, which will allow her to identify cholesteatoma as the problem.
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Honor Society of Nursing (STTI) answered
Johns Hopkins Medicine answeredDiagnosing cholesteatoma, a cyst in the middle ear, requires careful examination supplemented by advanced imaging, including CT scans. Your doctor may also order an audiogram to examine your child's hearing.