title: [Adenocarcinoma arising in a bronchial cyst of the mediastinum].
abstract: A 39 year-old man with a mediastinal tumor was operated on. After the median sternotomy incision, a mediastinal cyst, which was connected to the right pulmonary hilus with a string, was found. The microscopic examination of the cyst revealed a bronchial cyst with ciliated columunar epithelium and muscle fibers. Adenocarcinoma was found in the mucosa of the cyst. This patient seemed to be the first reported instance of carcinoma in a mediastinal bronchial cyst.
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology*; D000328:Adult; D001980:Bronchi / Q000473:pathology; D006801:Humans; D008297:Male; D008476:Mediastinal Cyst / Q000473:pathology*; D008479:Mediastinal Neoplasms / Q000473:pathology*