Nasal dermoid cyst: diagnosis and management of five cases.

Five cases of nasal dermoid cyst are presented. Three out of five cases were settled during childhood. Three presented a mass with a hole on the external nose with recurrent local infections. One case was wrongly referred for a dacryocystitis. The first one was detected during an infection of the cerebral extension and frontal abscess was assessed by CT scan and MRI. Two patients had other associated congenital abnormalities: hypotrophy of the external ear in one case, multiples malformations in an other. Adequate exposure and cosmetic results are sometimes contradictory to define the best surgical approach. Dermoid cysts and sinuses must be completely removed to prevent recurrence. External rhinoplasty and bicoronal approach are the main procedures for removing these lesions.