1. Methods: Surgical incision and drainage of retropharyngeal abscess were done through an intraoral approach with the straight laryngoscope.

2. Lymph node metastasis included lateral retropharyngeal lymph nodes 118 cases, neck upper-deep lymph nodes 140 cases.

3. Objective: To discuss the clinical characteristics of the retropharyngeal abscess and therefore to improve ...

4. Objective: To discuss the clinical characteristics of the retropharyngeal abscess and therefore to improve the treatment level.

5. The contents of the retropharyngeal space are limited to fat and retropharyngeal nodes.

6. Conclusions:Incision and drainage should not be done in tuberculous retropharyngeal abscess in order to prevent the incision from no healing up.

7. More than 25% of schwannomas are found in the head and neck region, and they are rarely found in the retropharyngeal space.

8. Subtotal corpectomy of C2 for spinal cord decompression and fusion were performed with anterior retropharyngeal approach.

9. The mass extends inferiorly into the infratemporal fossa and left retropharyngeal space. There is compression of anteromedial left temporal lobe, but no significant edema.

10. Conclusion: Lingual region stricture occurs in about 24% of patients with OSAHS[sentence dictionary], which may be caused by the incrassation of the retropharyngeal and lateral pharyngeal wall and fleshy tongue.

11. And there were not obviously difference between OSAS patients and normal adults in tongue length, anterior to posterior dimension and thickness of retropharyngeal wall tissue of upper airway.

12. CONCLUSIONS: MRI is more sensitive than CT in detecting skull base bone destruction and retropharyngeal lymph node involvement of NPC.

13. The results showed that the pretracheal space and the posterior infrahyoid space located in front of the viscera of the neck and the retropharyngeal space and the danger space behind it respectively.

14. From anatomic and physiologic viewpoints, excision through a transoral approach is a good choice for a confined retropharyngeal schwannoma.

15. Here, we report the case of a 44-year-old woman with a schwannoma confined to the left retropharyngeal space, who presented with snoring and a mild lump in the throat sensation.

16. Aberrant internal carotid artery is a rare situation which may cause retropharyngeal space enlargement.