성인에서 발생한 양측성 상악동 후비공 비용 1예

Antrochoanal polyp (ACP) is a rare, benign solitary mass from inflamed, edematous maxillary sinus mucosa. It may cross its ostium and reaches into the choana causing unilateral nasal obstruction and mouth breathing. It represent four to six per cent of all nasal polyps. Although it is usually unilateral, extremely rare cases it could be bilateral. In this paper, we report a case of bilateral ACPs in an adult and discuss the clinical presentation, endoscopic and radiologic evaluation, pathogenesis and surgical treatment. (J Clinical Otolaryngol 2012;23:296–299)