The muscles surrounding tympanic cavity
were opposed together with Alles tissue forcep and sutured with Catgut number 0.
According to some authors, endoscopy of middle ear is the best way to explore the tympanic cavity
and to understand the importance of ventilation roots, because disturbance of ventilation roots are the most important factors for initiation of pathology in the middle ear.
Tos and Lau divided cholesteatoma into three groups as follows; (I) Attic cholesteatoma, originating in a retraction (perforation) of shrapnel's membrane and extending to the attic from where it spreads to the aditus and antrum; (2) Sinus cholesteatoma, originating in a postero-superior retraction of the pars tensa (perforation) and spreading to the tympanic sinus and medial to the incus and malleus up toward the attic; and (3) tensa retraction of the entire pars tensa, lining all walls of the tympanic cavity
and spreading medially to the anterior and posterior malleus folds toward the attic.
In order to simplify the extent of cholesteatoma, the middle ear and mastoid space are divided into four sites: difficult access sites (S), tympanic cavity
(T), attic (A), and mastoid (M).
The normal tympanic cavity
is covered with a single layered and flattened or cuboidal respiratory epithelium, and it does not contain any glandular tissue.
8) Merrick reported metastatic involvement of the left tympanic cavity
in a patient who had undergone a hemicolectomy for an adenocarcinoma of the descending colon 6 years earlier.
This cleft in the posterior tympanic cavity
is often the subject of attention because it is visually obscure, it has a tendency to be involved with cholesteatoma, and there is no straightforward surgical approach to it.
Occasionally the tympanic cavity
may become filled with granulation tissue and may erode into mastoid cavity as it happened in the present case.
Examination detected a reddish-blue vascular mass behind the tympanic membrane that filled the postero-superior part of the right tympanic cavity
High resolution computed tomography provides excellent of bony land marks within the temporal bone, due to the temporal bone inherent contrast, its dense bone being surrounded by air of the tympanic cavity
and mastoid air cells.
1 instruments tympanic cavity
to drain the middle ear, of the type II of polytetrafluoroethylene (PTFE) having a diameter of 1.
1) Numerous causes have been proposed to explain the etiology of these aberrations; among them are the absence of a carotid canal (2) and the persistence of embryonic vasculature that may pull the ICA into the tympanic cavity