title: Bronchogenic cyst with high carbohydrate antigen 19-9 in the cyst fluid and the serum.
abstract: A mass of 8 cm in diameter was revealed in the right upper lung field of a 46-year-old female patient. The chest X-ray film taken one year previously revealed only a linear shadow in the same position, which was thought to be a vacant cyst. The levels of carbohydrate antigen (CA) 19-9 in cyst fluid and serum were elevated, at 410,000 and 130 U/ml, respectively. After surgical resection, serum CA19-9 returned to normal. Pathologically, the cyst wall was lined with bronchial epithelium with no evidence of malignancy. Immunohistochemical study revealed CA19-9 positivity in the bronchial epithelium of the cyst wall.
authors.affiliation: Department of Internal Medicine, Konan Hospital, Sapporo.
authors.forename: Y
authors.initials: Y
authors.lastname: Tokuchi
authors.forename: H
authors.initials: H
authors.lastname: Ukita
authors.forename: Y
authors.initials: Y
authors.lastname: Tsuneta
authors.forename: Y
authors.initials: Y
authors.lastname: Nishiura
authors.forename: W
authors.initials: W
authors.lastname: Takahashi
authors.forename: T
authors.initials: T
authors.lastname: Kawai
authors.forename: H
authors.initials: H
authors.lastname: Isobe
authors.forename: Y
authors.initials: Y
authors.lastname: Kawakami
mesh_terms: D001826:Body Fluids / Q000276:immunology; D001994:Bronchogenic Cyst / Q000175:diagnosis / Q000276:immunology* / Q000601:surgery; D018395:CA-19-9 Antigen / Q000097:blood* / Q000378:metabolism*; D005260:Female; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging; D008875:Middle Aged; D014057:Tomography, X-Ray Computed
chemical_list: D018395:CA-19-9 Antigen