Results 171 to 180 of about 55,634 (225)
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Congenital Cholesteatoma of the Middle Ear
New England Journal of Medicine, 2010A 9-year-old boy was referred to an otolaryngologist for subjective right-sided hearing loss. A hearing test revealed mild conductive hearing loss at low and middle frequencies. Otoendoscopy showed a mass with the appearance of a small white pearl (arrow) behind the right eardrum and in contact with the malleus.
Fetoni, Anna Rita, Sergi, Bruno
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Heat Shock Proteins in Middle ear Cholesteatoma
Otolaryngology–Head and Neck Surgery, 1996Heat shock proteins (HSPs), particularly HSP60 and HSP70, may have integral roles in several aspects of the pathogenesis of acquired cholesteatoma. Cholesteatoma is usually associated with an inflammatory reaction occurring in the middle ear cavity, leading to proliferation, differentiation, and programmed cell death of keratinocytes.
Cheng-Chun Huang, Hideo Shinoda
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Complicated cholesteatomas: CT findings in inner ear complications of middle ear cholesteatomas.
Radiology, 1987Patients with facial palsy and middle ear disease, which may be chronic but clinically occult, may have a cholesteatoma with extension medially along the facial canal. In two patients, axial computed tomographic (CT) scans demonstrated involvement of the medial petrous bone.
A J Silver +4 more
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Involvement of interleukin-1 in middle ear cholesteatoma
American Journal of Otolaryngology, 1995The histopathological characteristics of middle ear cholesteatoma are hyperproliferation and differentiation of the epithelium and accompanying destruction of the bones. We directed our attention to interleukin 1 alpha (IL-1 alpha) and demonstrated localization of IL-1 alpha in the epidermis of cholesteatoma.
Hiromi Kojima +3 more
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Some Observations on the Pathogenesis of Middle-Ear Cholesteatoma
Archives of Otolaryngology - Head and Neck Surgery, 1959The widespread use of chemotherapy and antibiotics has modified considerably the general picture of middle-ear cholesteatoma. Cholesteatoma which originates by immigration of epidermis through a marginal or total perforation of pars tensa after necrotizing otitis media, as substantiated by Habermann1and Polvogt,2has been greatly reduced, while the ...
Merle Moskowitz +2 more
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MRI Findings of a Middle Ear Cholesteatoma in a Dog
Journal of the American Animal Hospital Association, 2012This article describes the MRI features of a middle ear cholesteatoma in an 8 yr old flat-coated retriever. Physical examination revealed pain on opening the jaw, and otoscopic examination showed tympanic membrane rupture associated with hyperplastic tissue at the entrance of the middle ear.
Harran, Nathaniel X. +5 more
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HISTOLOGY AND HISTOGENESIS OF CHOLESTEATOMA OF THE MIDDLE EAR AND MASTOID
Archives of Otolaryngology - Head and Neck Surgery, 1951ALTHOUGH cholesteatomas of the middle ear and mastoid are of relatively common occurrence, and much about them has been observed and written during the past hundred years, their name is a misnomer, their nature is often misunderstood and the theories of their origin are confusing and contradictory.
Henry L. Williams +2 more
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Localization of Filaggrin in Human Middle Ear Cholesteatoma
Acta Oto-Laryngologica, 1989Filaggrin, a histidine-rich protein, was located immunohistochemically in human middle ear cholesteatoma by specific antibody. It was found to be localized in the cytoplasm of the granular layer cells and cornified layer. The pattern of distribution is similar to that of epidermis.
Cheng Chun Huang, Wen-Yuan Chao
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A Novel Surgery Classification for Endoscopic Approaches to Middle Ear Cholesteatoma
Current Medical Science, 2020Yu Sun +14 more
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