Case report: Bilateral ossification of the stylohyoid ligaments

• Author Details:   
• Sherin RS

---

View PDF

The stylohyoid ligament extends from the styloid process to the lesser cornu of the hyoid bone and develops from Reichert’s cartilage of the second pharyngeal arch. While partial calcification of the ligament is relatively common, complete ossification is rare and may be associated with Eagle’s syndrome. During routine cadaveric dissection, we observed bilateral ossification of the stylohyoid ligaments. On both sides, the ossified ligaments were firmly attached to the styloid processes and the hyoid bones, eliminating any degree of movement of the hyoid apparatus. Bilateral ossification of the stylohyoid ligaments is a rare anatomical variation. Awareness of this condition is important for clinicians, as it may present with symptoms of Eagle’s syndrome or complicate surgical and anesthetic procedures, including tracheal intubation.