抄録
The esophageal cyst is a relatively rare disease. Only 25 cases have been reported in literature in Japan. A case of the esophageal cyst in the left mediastinum was presented in this paper. The patient was a 6-year-old girl who was hospitalized with cough and fever. Echogram and CT-scan were useful for the diagnosis of the cyst. Thoracotomy was performed under the diagnosis of the mediastinal cystic lesion. The cyst was located at the left lower posterior mediasinum, and it was not communicated to the bronchus and the esophagus. Resional pneumonia was observed at the surrounding of the cyst. Histlogically, the cyst wall was lined with the stratified squamous epithelium and two muscular layers. There was no cartilage. Based on these fingings, the diagnosis was confirmed as the esophageal cyst. In addition, the clinical features, diagnosis, therapy and definition of the esophageal cyst were discussed and the literature reviewed.
