The purpose of this study is to report a rare and interesting case of a 10-
month-old boy who presented a bilateral ethmoidal mucocele associated with
cystic fibrosis and to discuss, according to the literature? the sinonasal
involvement in this disease. Only nine pediatric patients with both disorde
rs have been reported previously in literature, and all of these cases were
older than 1 year 4 months and presented with a unilateral mucocele. (C) 2
000 Elsevier Science Ireland Ltd. All rights reserved.