Pediatric congenital nasal masses.

Nasal dermal sinus cysts, encephaloceles, and gliomas are the most common congenital nasal masses with actual or potential central nervous system connections. They can present intranasally, extranasally, or as external nasal masses with or without nasal obstruction. This paper presents several illustrative cases and reviews recent concepts in embryology and management, which hold that all congenital midline nasal masses potentially have central nervous system connections and should be managed as such.