cholesteatoma


Also found in: Dictionary, Medical, Wikipedia.

cholesteatoma

[kə‚les·tē·ə′tō·mə]
(medicine)
An epidermal inclusion cyst of the middle ear, or mastoid bone, sometimes in the external ear canal, brain, or spinal cord. Also known as pearly tumor.
References in periodicals archive ?
A cholesteatoma is a non-malignant tumour that can erode the tympanic membrane (eardrum), potentially leading to deafness or recurrent infection.
These microcholesteatomas gradually grow and fuse with others over time, forming a clinically evident cholesteatoma.
That's when I was diagnosed with mastoid cholesteatoma, a disease caused by a build-up of infection that can, if left untreated, eat away at the inner ear.
High-resolution computerized tomography (HRCT) of temporal bone revealed soft tissue mass in middle ear cleft and ossicular destruction suggestive of cholesteatoma and Luc's abscess formation at left temporal bone (Fig.
Treatment for childhood CHL may involve medical and surgical management, ranging from myringotomy and ventilation tube (grommet) insertion for persistent middle-ear effusions, tympanomastoidectomy for cholesteatoma with recon-struction of the ossicular chain, to bone-anchored hearing systems for congenital aural atresia.
She said: "I was diagnosed with a cholesteatoma tumour in May last year and everything seemed to go wrong at once as Mick lost his job.
If left untreated, the cholesteatoma can spread to the mastoid bone, which is a prominent part of the skull located behind the ear lobe.
CT scan of the middle ear showed bilateral cholesteatoma and mastoiditis.
Over a period of quite a few years I was the victim of many ear problems including chronic ear infections, cholesteatoma, retraction pockets, numerous ruptured ear drums, erosion of the bones of the middle ear and progressive hearing loss.
Past medical history was remarkable for surgical excision of a congenital cholesteatoma and insertion of transtympanic tubes to correct a conductive hearing loss.
Cholesteatoma is a collection of debris from keratinizing squamous epithelium, which normally lines the ear canal and tympanic membrane, but has grown into the middle ear space.