epitympanum


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epitympanum

[¦ep·ə′tim·pə·nəm]
(anatomy)
The attic of the middle ear, or tympanic cavity.
References in periodicals archive ?
A postauricular incision is more appropriate for excising small, discrete lesions of the anterior mesotympanum or when mastoidectomy is anticipated for tumors that extend to the epitympanum, hypotympanum, or outside the middle ear space.
Palva and Coll studied the anatomy of epitympanic compartments and described the anatomy of epitympanic diaphragm studying ventilation pathways of epitympanum.
The lesion, although extensive, also seemed to arise from the epitympanum.
Thirty nine patients (54%) had shallow, self-cleaning, and safe retraction pockets mostly at the epitympanum.
The difficult access sites (S) includes S1, the supratubal recess (also called the anterior epitympanum or protympanum) and S2, the sinus tympani.
There was also nondependent soft tissue abutting the posterior middle ear and extending into the epitympanum, with marked erosion of the incus body.
However, the tympanic segment of the facial nerve was focally pressed at the anterior epitympanum by the air cells, which were filled with yellowish fluid.
Epitympanum (Attic): Part above the malleolar folds.
There was no significant extension into the epitympanum.
Anterior Buttress: This should be removed completely to access the epitympanum enabling disease removal and exteriorization.