[The aetiology and management of the frontal sinus mucopyocoele (author's transl)].

The pathogenesis of frontal sinus mucopyocoele is assessed in 33 patients seen between 1958 to 1972. In 45% there has been previous frontal sinus surgery. The importance of the frontonasal duct and healthy mucosa is stressed. The unexpectedly high number of mucopyocoeles following surgery permitted critical assessment of the procedures employed. The most successful and least complicated of which involved preservation or reconstruction of a drainage canal, removal of the obstructing middle turbinate and use of an indwelling drainage tube for at least 6 months. Regular follow-up and adequate early treatment of intercurrent infection are essential.