A cholesteatoma

A cholesteatoma is mass education, the epidermal cyst. Cyst wall consists of multi-layer flat epithelium, by building close to the epidermis, and connective tissue layer; cavity contains the gray-white Horny masses with crystals cholesterol (see).
Distinguish true of cholesteatoma, which malformation, and false, arising as a result of chronic inflammation. True cholesteatoma usually localized within the skull, above and beneath the Dura mater or in the spinal cord. False cholesteatoma is observed in the middle ear (see Otitis), sinus cavity of the nose, uterus, bladder, kidney, etc. this is Usually a single node, often large sizes (up to 4-5 cm in diameter), clearly separated from the surrounding tissues, but cholesteatoma there are plural in form of small dense knots. A cholesteatoma is growing slowly, often asymptomatic; if it is located beneath the Dura mater, it may be accompanied by symptoms compression of the brain. When breaking the wall of cholesteatoma content can flow, which is accompanied by severe complications, such as agnouni meningitis.
Treatment of cholesteatoma - surgical.

A cholesteatoma (cholesteatoma) granulomas education, which is a cyst, made of horn masses with the presence of cholesterol crystals. Cyst wall consists of a multilayer epithelium, by building close to the epidermis, and beneath it the connective tissue layer.
Distinguish true of cholesteatoma disambiguationspage origin and false, emerging as a result of chronic inflammation. Localized cholesteatoma usually inside the skull: subdural (in the brain) and epidurally (in the bones of the skull), rarely - in the spinal cord. More often they are located in the cerebellopontine angle, in the fourth ventricle, the lateral ventricles and other
This is usually solitary nodes are fairly large size, however, there are plural in form of small dense knots. Nodes are clearly distinguished from the surrounding tissue capsule forming a cavity containing grayish-white, crumbly or spotting mass with characteristic pearl luster, quickly disappearing in the air.
Microscopically the cholesteatoma is a epidermal cyst lined inside atrophic multi-layer flat epithelium without appendages of the epidermis. The cyst is performed by the weight consisting of dead skin cells and epithelial cells that retain the kernel or subjected fat disintegration. Content is determined by a significant amount of cholesterol crystals. Outside the cavity delimited by connective tissue capsule with a small number of vessels, sometimes associated with vessels soft meninges. In the capsule is often stated deposition of lime, hyalinosis or granulation tissue with giant cells foreign phone
Cholesteatoma are characterized by slow growth, often without clinical manifestations and only detected in operations or on the partition. Subdural of cholesteatoma may cause deformation of the brain with onset of symptoms of tightness or tumors. When breaking the cyst wall poured out the contents, which is accompanied by severe disabilities (nagnoenie meningitis, and others).
False cholesteatoma occur in the middle ear, sinus cavity, uterus, bladder, kidneys and urinary tract, gall bladder, breast, soft tissues of the eye and other Morphologically they do not differ from the true.
Treatment of cholesteatoma surgery.