title: Giant hamartoma of the lung with a high production of carbohydrate antigen 19-9.
abstract: A rare case of a giant pulmonary hamartoma with a high production of carbohydrate antigen (CA) 19-9 is presented. A 43-year-old woman with complaints of cough, fever, and chest pain was diagnosed as having a posterior mediastinal tumor with pneumonia. The serum CA 19-9 level was high. A thoracotomy revealed an intrapulmonary solid mass with a histologic diagnosis of cartilaginous hamartoma with no evidence of malignancy. The CA 19-9 concentration in the mucus of the tumor was high, and postoperatively the serum CA 19-9 level returned to normal. The CA 19-9 could be immunohistochemically demonstrated on the surface of the tumor.
authors.affiliation: Second Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyusyu, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Okabayashi
authors.forename: M
authors.initials: M
authors.lastname: Hiratsuka
authors.forename: Y
authors.initials: Y
authors.lastname: Noda
authors.forename: T
authors.initials: T
authors.lastname: Hanagiri
authors.forename: T
authors.initials: T
authors.lastname: Mitsudomi
authors.forename: T
authors.initials: T
authors.lastname: Shirakusa
authors.forename: T
authors.initials: T
authors.lastname: Kasai
mesh_terms: D000328:Adult; D015295:Antigens, Tumor-Associated, Carbohydrate / Q000032:analysis*; D005260:Female; D006222:Hamartoma / Q000175:diagnosis / Q000276:immunology* / Q000473:pathology; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis / Q000276:immunology* / Q000473:pathology
chemical_list: D015295:Antigens, Tumor-Associated, Carbohydrate