1. Methods 8 cases of orbital dermoid cyst were analysed.

2. Giant dermoid cyst of the petrous apex.

3. Objective To explore the diagnosis and treatment of dermoid cyst of the anterior fontanelle in infants.

4. Conclusions Dermoid cyst of anterior fontanelle is a congenital benign disease with satisfactory surgical outcome.

5. Result The orbital dermoid cyst occurs in one eye and mainly on superior temperal orbital rim.

6. Dermoid cyst and teratoma were mixed in different degree with fat, calcification and skeleton.

7. Clinical differential diagnosis includes fibrous dysplasia, osteoma, dermoid cyst, meningioma, eosinophilic granuloma, Lagerhan cell histiocytosis, and metastatic disease.

8. Objective To study the CT findings of dermoid cyst of the orbit.

9. In some cases, the contralateral ovary may have another type of neoplasm, usually a dermoid cyst.

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

11. The differential diagnosis of a hypoechoic lesion inferomedial to the globe includes anterior encephalocele , hemangioma,(http:///dermoid cyst.html) and periorbital dermoid cyst.

12. Objective To study the clinical characteristics of children orbital dermoid cyst.

13. Objective To investigate the clinical characteristics, diagnosis and treatment of dermoid cyst in sellar region.

14. Results In all the cases, there are 34 cases of dermoid cyst, 7 cases of epidermoid cyst, 4 cases of mucous cyst, 4 cases of sebaceous cyst.