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epitympanum

epitympanum

9.9
The upper part of the middle ear above the eardrum
  • noun
  • /ˌɛpɪˈtɪmpənəm/
  • Specialized
: epitímpano
  • The epitympanum is located above the tympanic membrane and plays a crucial role in hearing.

Examples

  • On the right side, the middle ear cavity was normal except for a small amount of blood in the posterior epitympanum and mesotympanum, which was probably an artifact of the bone removal.

    Academic text (2001)
  • B: Coronal CT demonstrates that the tumor has invaded the right mesotympanum and epitympanum and destroyed the inferior and lateral portions of the temporal bone.

    Academic text (2006)
  • The fat is trimmed so that it does not protrude into the epitympanum, which could cause conductive hearing loss.

    Academic text (1996)
  • Both recurrences were attributed to a prolapse of the dural repair into the epitympanum.

    Academic text (2005)
  • The lesion had eroded the lateral wall of the mastoid and epitympanum and extended intracranially.

    Academic text (2006)
  • Residual cholesteatoma was found in the mastoid, the facial recess, and the anterior epitympanum.

    Academic text (1996)
  • Patient 2: Axial CT through the epitympanum shows erosion of the anterior cranial fossa and medial temporal bone.

    Academic text (2006)
  • The doctor explained that any infection in the ear could spread to the epitympanum, leading to more serious health issues.

  • During the surgery, the surgeon had to carefully examine the epitympanum to ensure no damage was done to the surrounding structures.

Surface Forms

epitympanum singular
epitympana plural

Morphology

epitympanum = tympanum (opaque) = epi + tympan + um

The prefix 'epi-' suggests 'above' or 'upon', but the specific anatomical reference is not transparent to most learners.

Etymology

Epitympanum comes from the parts epi- 'above' and tympanum 'drum'. So the epitympanum is the part of the middle ear just above the eardrum.