Results 261 to 270 of about 41,042 (281)

Cholesteatoma Behind an Intact Tympanic Membrane: Histopathologic Evidence for a Tympanic Membrane Origin

Otology & Neurotology, 2001
Several theories have been proposed with respect to the origin and pathogenesis of cholesteatoma behind an intact tympanic membrane.The authors describe a case of cholesteatoma behind an intact tympanic membrane in a 71-year-old man with a history of tympanic membrane retraction fixed to the incus without evidence of a perforation.
Sudhoff, Holger, Linthicum, Fred H.
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Function of the Tympanic Membrane

The Journal of the Acoustical Society of America, 1970
Vibrational holography was performed on tympanic membranes (TM) in human temporal bones obtained immediately after death. Displacement patterns at the first mode (and also at higher modes) were essentially the same as those found in cats (Khanna et al., 1969). Findings in both species can best be reconciled with the catenary concept of Helmholtz (1868).
Shyam M. Khanna, Juergen Tonndorf
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The tympanic membrane

1983
The tympanic membrane of a human adult is oval or elliptical in shape, with its major axis 9.0–10.2 mm in length and minor axis 8.5–9.0 mm. The tympanic membrane is divided into tense and flaccid portions and histologically consists of three layers, epidermis, lamina propria and mucosa. The flaccid portion lacks the lamina propria. The annular ligament
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Haemangioma of the tympanic membrane

BMJ, 2017
A 45 year old woman was referred to the ear, nose, and throat department with a three month history …
Declan C Murphy, John S. Phillips
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Tympanic Membrane Response in the Cricket

Nature, 1970
THE analysis of the frequency response to sound of individual nerve fibres in the orthopteran ear indicates that the fibres are most sensitive at a particular frequency (usually between 4 and 6 kHz), but that this frequency tends to be the same for all fibres1,2.
Brian M. Johnstone, J. R. Johnstone, J. C. Saunders   +2 more
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Tympanic membrane perforations

2018
This chapter discusses Macfadyen, Acuin, and Gamble’s paper on systemic antibiotics versus topical treatments for chronically discharging ears with underlying eardrum perforations including the design of the study, (including outcome measures, results, conclusions, and a critique).
Georgios Oikonomou, David Selvadurai
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The true shape of the tympanic membrane

The Journal of Laryngology & Otology, 1987
SummaryTwenty-eight human tympanic membranes (TM) are presented. In almost all of them the horizontal axis is longer than the vertical. This is contrary to the accepted view, which describes the tympanic membrane as being longer in its Vertical dimension.
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Atrophy of the tympanic membrane [PDF]

, 1985
Atrophy of the tympanic membrane denotes a thin and pellucid eardrum. Histologically, the atrophic area is characterized by a thin lamina propria, containing abnormally few elastic and fibrous fibers which make it thin, unelastic, and slack. In severe cases, the lateral part of the pars tensa consists exclusively of keratinized squamous epithelium and ...
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Lipoma of the Tympanic Membrane

Journal of Craniofacial Surgery, 2016
Nurdoğan Ata, Tahir Bülbül, Betül Berberoğlu   +2 more
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The orientation of the tympanic membrane

Clinical Anatomy, 2011
Lauren J. McManus, Patrick J. D. Dawes, Mark D. Stringer   +2 more
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