염증성 경부 종괴로 오인된 구강피부누공 1예

Odontogenic cutaneous fistula is rarely reported in otolaryngologic literature. As the lesion mimics other common cutaneous skin lesion, accurate diagnosis is challenging problem. We report a case of a 39-year-old man who presented with relapsing nodular mass in submental region. Physical, radiological, and cytological examination suggested recurrent cervical lymphadenitis and excisional biopsy was performed. The fistula tract penetrating deep to the oral floor was found on surgical field and lower right second molar tooth was identified as the origin site of fistula by fistulography. A tooth extraction and root canal treatment was performed and the patient remained disease free. (J Clinical Otolaryngol 2011;22:121–125)