Definition: Calcification or ossification of the stylohyoid ligament.
Radiographic Features:
- Location: Lateral to the ramus on panoramic radiographs; may superimpose over distal ramus
- Edge: Well-defined
- Shape: Linear
- Internal structure: Radiopaque
- Other: Multiple ossification centers with ‘joint-like’ appearances where they meet
- Number: May be unilateral or bilateral
Key points:
- Normal anatomical variant in many cases
- Ossification typically progresses from multiple centers
- Can vary in length and degree of ossification
- May be associated with Eagle’s syndrome if symptomatic
Clinical significance:
- Often an incidental finding requiring no treatment
- Can cause symptoms in Eagle’s syndrome (pain on head rotation)
- May complicate surgical procedures in the area
- Important to correlate radiographic findings with clinical symptoms
Note: Eagle’s syndrome should be considered only when ossification is present AND the patient experiences pain on head rotation. Ossification without symptoms is not diagnostic of Eagle’s syndrome.