내시경적 조대술로 치료한 전두동에 발생한 콜레스테롤 육아종 치험 1예

Cholesterol granuloma occurs in the middle ear and mastoid frequently, but frontal sinus cholesterol granuloma, although rare, have typical histologic and radiologic features. This case was a patient with chief complaints of headache and hyposmia. PNS CT showed a well defined soft tissue density mass and osteolytic lesions in frontal sinus. Histological specimen showed numerous slits like cholesterol clefts surrounded by multinucleated foreign body type giant cells with hemosiderin pigments. We have experienced a case of cholesterol granuloma of frontal sinus, which was managed by endoscopic sinus surgery and marsupialization successfully. So we report this case with a review of literature. (J Clinical Otolaryngol 2007;18:92–95)