경부에 발생한 흉선 낭종 1예

Abstract

Cervical thymic cysts are not very common. Two-thirds of the lesions are detected in the 1st decade of life, when the thymus is biggest in size and most active. The remaining one-third in the 2nd and 3rd decades. Due to its rarity, cervical thymic cyst is seldom included in the differential diagnosis of a neck mass. Approximately 90 cases have been reported thus far, and most of these cases have occurred asymptomatically in children and adults. We report a case of a 44-year old man with a cervical thymic cyst mimicking branchial cleft cyst.