[Ethmoid-frontal mucocele. Apropos of 15 cases from 1985 to 1990].

Between 1985 and 1990, 15 ethmoid frontal mucoceles were collated. All our patients consulted us at the exteriorization stage. A CT-scan is the ideal examination, making it possible to assert the diagnosis and to individualize the bone destruction and the neighbouring tissue repression. Trans-ethmoid or trans-nasal marsupialization by an external or endonasal approach provided excellent results after a 1 to 5 year follow-up period.