輪状軟骨との連続性を認めた頸部気管支原性囊胞例

A case of cervical bronchogenic cyst connected with cricoid cartilage

Ⅰ　はじめに

　気管支原性囊胞は胎生期の呼吸器管系の発生異常により生じるといわれる囊胞性疾患である。肺内や縦隔に好発するが，頸部発生例は稀である。今回われわれは，頸部に発生し病理組織学的に気管支原性囊胞と診断された小児の1例を経験したので報告する。

　A 5-month-old girl presented with anterior cervical mass. MRI revealed a 23 mm cystic lesion in the left cervical region. Surgery was done 40 months later because of deterioration of dysphagia. The cyst was connected with cricoid cartilage and it consisted of ciliated columnar epithelium,seromucinous glands,smooth muscle,and hyaline cartilage histologically. Pathological diagnosis was bronchogenic cyst. Although cervical bronchogenic cyst is rare,we should consider it in the differential diagnosis of cystic lesions in the neck.