title: Mediastinal esophageal duplication cyst associated with a partial pericardial defect.
abstract: A two-year-old girl with a mediastinal esophageal duplication cyst is the twelfth example of a thoracic cyst of foregut origin or pulmonary "sequestration" (bronchopulmonary foregut malformation according to the expanded definition of Gerle et al.) that has been associated with a partial pericardial defect on the same side, suggesting that anomalous thoracic masses of several morphologic types have a similar pathogenesis.
mesh_terms: D001998:Bronchopulmonary Sequestration / Q000150:complications / Q000000981:diagnostic imaging*; D002675:Child, Preschool; D004934:Esophageal Cyst / Q000150:complications / Q000000981:diagnostic imaging*; D005260:Female; D006330:Heart Defects, Congenital / Q000150:complications; D006801:Humans; D008476:Mediastinal Cyst / Q000150:complications / Q000000981:diagnostic imaging*; D010496:Pericardium / Q000002:abnormalities* / Q000000981:diagnostic imaging; D011031:Pneumothorax, Artificial; D011859:Radiography