title: [A case of pericardial diverticulum with changing size].
abstract: A 39 year-old woman with a tumor shadow in the right upper mediastinum noticed by chest x-ray examination of mass survey was presented. Chest x-ray films taken 5 times in a month in a same position showed the mass further changed in size. This result indicates the communication between the mass and pericardial cavity. Surgical extirpation was carried out and diagnosed a pericardial diverticulum.
authors.affiliation: Department of Thoracic Surgery, Tsuruoka City Shonai Hospital.
authors.forename: S
authors.initials: S
authors.lastname: Hirooka
authors.forename: R
authors.initials: R
authors.lastname: Ishiwara
mesh_terms: D000328:Adult; D004240:Diverticulum / Q000473:pathology / Q000601:surgery*; D005260:Female; D006331:Heart Diseases / Q000473:pathology / Q000601:surgery; D006801:Humans; D010496:Pericardium