Anatomy & Histology · single question

Which ligament is most commonly involved in Eagle syndrome?

  1. Stylomandibular ligament
  2. Sphenomandibular ligament
  3. Stylohyoid ligament
  4. Temporomandibular ligament
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Correct answer: C. Stylohyoid ligament

  • A. The stylomandibular ligament is a distractor with a similar name but is not the structure classically calcified/elongated in Eagle syndrome.
  • B. The sphenomandibular ligament is unrelated to Eagle syndrome's pathophysiology.
  • C. Correct. Eagle syndrome results from an elongated styloid process and/or calcification of the stylohyoid ligament, which can impinge on adjacent nerves/vessels causing pain on swallowing/neck rotation.
  • D. The temporomandibular ligament relates to TMJ function, unrelated to Eagle syndrome.

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