The lesion, although extensive, also seemed to arise from the epitympanum
6) They found that compared with ICWM, CWDM offered significantly superior visualization of the lateral epitympanum
, posterior crus of the stapes, and sinus tympani.
Computed tomography of the temporal bone demonstrated a soft-tissue mass in the epitympanum
with erosion of the scutum.
The mass had arisen in the epitympanum
, and it extended from the aditus ad antrum to the external auditory canal.
The mass projected into the epitympanum
but did not persist at the level of the aditus ad antrum.
Primary acquired cholesteatoma originates from an attic retraction pocket and spreads to involve the posterior epitympanum
, posterior mesotympanum and, less frequently, the anterior mesotympanum.
A soft, grayish, well-demarcated mass filled the mastoid antrum, mastoid tip, aditus ad antrum, and epitympanum
Acholesteatoma sac was found intraoperatively; it filled the middle ear and epitympanum
but did not involve the mastoid.