1. Surgical excision is effective in laryngocele treatment.

2. Laryngocele is an uncommon disease defined as an abnormal dilatation or herniation of the laryngeal saccule, forming an air-filled cavity.

3. Therefore patients with a laryngocele are typically male glass blowers, trumpet players or chronic coughers above the age of 50.

4. Ideally a laryngocele can be diagnosed by CT or MR imaging, because the content of the cyst (i. e. air or fluid) is apparent in these imaging modalities.

5. Trumpet maneuver has been reported in CT examination for the diagnosis of laryngocele.

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6. However, to the best of our knowledge, the use of trumpet maneuver in the sonographic diagnosis of laryngocele has not been previously described.

7. There are very few reports in the literature on sonographic findings of laryngocele.

8. Conclusions: CT scan is a significant method for diagnosis of laryngocele.

9. The location and the cystic content give the best clues in determining the type of laryngocele.

10. Objective: To summarize the clinical characteristics, diagnostic main points and therapeutic methods of laryngocele .

11. This report presents the sonographic findings of an external laryngocele while performing the trumpet maneuver.