Attic Tympanic Membrane

If the cholesteatoma has been dry the cholesteatoma may present the appearance of wax over the attic.

Attic tympanic membrane.

A tympanic membrane perforation can have many causes. The tympanic cavity is subdivided into several parts defined in relation to the planes of the tympanic membrane. The tympanic membrane is shaped like a flat cone pointing into the middle and inner ear. Epitympanum attic epitympanic recess superior to the membrane.

In other cases frequent ear infections can cause a tympanic membrane perforation. Tympanic membrane also called eardrum thin layer of tissue in the human ear that receives sound vibrations from the outer air and transmits them to the auditory ossicles which are tiny bones in the tympanic middle ear cavity. It consists of three layers from external to internal. The terms atelectasis or sometimes adhesive otitis media.

This section contains information on acute traumatic central marginal attic and total perforations along with information on the monomeric tympanic membrane. It attaches to an incomplete ring of bone along the wall of the eac the tympanic annulus. The eardrum comprises two parts the pars tensa which is the main part of the eardrum and the pars flaccida which is a smaller part of the eardrum located above the pars tensa. It also serves as the lateral wall of the tympanic cavity separating it from the external auditory canal.

The head of the club lies in a cavity of the middle ear above the tympanic membrane the attic where it is suspended by a ligament from the bone that forms the covering of the brain. Tympanic membrane perforations a perforation is a hole in the tympanic membrane that is visible through the otoscope. Left tympanic membrane showing attic perforation. At the center of the concavity the deepest point is called the umbo.

Here the head articulates with the incus which is cone shaped with the base of the cone articulating with the head of the malleus also in the attic. In people who have had ear tubes tympanostomy tubes a perforation can result when the eardrum does not close up after the tube comes out. While this is rare it is seen from time to time. The retracted segment of eardrum is often known as a retraction pocket.

Either or both of these parts may become retracted. Hypotympanum inferior to the membrane. Ppt c s o m clinical features powerpoint ation viktor s notes middle ear disorders impact of site and size pars tensa tympanic membrane unit five tympanic membrane perforations chronic suppurative ois media csom a middle ear mucosal. Some authors define three compartments 4.

Mesotympanum directly medial to the membrane. Impact of site and size pars tensa tympanic membrane.