위-아래 접근법으로 치료한 전두동 점액낭종 3예

A mucocele is a pseudo-cystic, epithelium-lined mucus containing lesion of the paranasal sinuses. It is caused by chronic inflammation or followed by physical or iatrogenic trauma to the lining mucosa. The frontal sinus and/or ethmoid sinus mucocles are the most frequent sinus of which endonasal endoscopic marsupialization is considered as the first choice of treatment. However, in case of frontal mucocele with lateral extension or when frontal sinus outflow tract is completely obstructed by hypertrophied mucosa or new bone formation, it is hard to open all the lesions using endonasal endoscopic approach only. We report 3 cases of frontal sinus mucocele caused by physical or iatrogenic trauma which was treated with above (trephination) and below (endonasal) approach with a literature review. (J Clinical Otolaryngol 2014;25:229-235)