1. Results:The branchial cleft cysts more frequently arose from the second branchial pouches and also from the first pouches.

2. Branchial cleft cyst had the relatively fixed location and hadn't been enhanced.

3. Conclusion: The key point to cure the recurrent branchial cleft cyst and sinus lies on the sufficient preparation before operation and the reasonable option of operation procedure.

4. Most of the thyroglossal duct cyst and branchial cleft cyst were monolocular, while lymphangioma was multilocular.

5. Most of the thyroglossal duct cyst and branchial cleft cyst were monolocular, while lymphangioma multilocular. Metastatic tumors of the cystic lymph nodes were always associated with wall nodule.

6. Amphioxus the branchial cleft not directly to the surface opening, which was wrapped with skin and muscle, the formation of a special "Wai gill chamber."

7. Branchial cleft cyst and fistula are common congenital developed deformity, In this paper, 33 cases were reported and analysed.

8. Objective To explore the causes of the congenital branchial cleft cyst and fistula misdiagnosed and the approach to improve the diagnosis.

9. Bilateral branchial cleft fistulas are uncommon, but the incidence is higher in the same family.

10. Results Thyroglossal duct cyst comprised 43.2% (38/88), branchial cleft cyst 17.0% (15/88), lymphangioma 11.4%(10/88), and cystic lymph node of neck 28.4% (25/88).

11. It was difficult to distinguish them from hemangioma, pure cyst, branchial cleft cyst, sebaceous gland cyst and dermoid cyst.

11.

12. Objective:To evaluate the MRI and CT characteristics of the branchial cleft cysts.

13. Objective:To explore the diagnosis and treatment for the congenital branchial cleft cysts and sinuses.

14. Consulsion:Surgical resection was the main method to treat the congenital branchial cleft cysts.

15. They are thought to originate from either the ultimobranchial body or branchial cleft derivatives and are frequently associated with autoimmune thyroiditis.

16. The tumor was separated from the thyroid gland and was thought to arise at the site of a branchial cleft cyst, possibly in ectopic thyroid tissue.

17. Conclusion:MRI and CT are useful methods in the determination of location and nature of the branchial cleft cysts.

18. Occult thyroid papillary carcinomas often present as a solid mass in the lateral neck, with only a few cases revealing a branchial cleft cyst as the initial manifestation.

19. A brief discussion has been made in the clinical diagnosis and the causes of misdiagnosis in the first branchial cleft diseases.

20. Objective To investigate the CT manifestation and the key points of diagnosis of branchial cleft cyst.