title: Pulmonary collision tumor consisting of adenocarcinoma and typical carcinoid--a case report and review of literature.
abstract: Collision tumors are rare in nature. We report a case of a 70-year-old woman who was found to have a new mass in the right lung. Right upper and middle lobectomies with a mediastinal lymph node sampling were performed. Pathological examination of the mass revealed a collision tumor composed of micropapillary adenocarcinoma and typical carcinoid. The neoplastic cells were not intimately admixed with one another. To the best of our knowledge, this case is the first report in the English medical literature of a primary pulmonary collision tumor consisting of micropapillary adenocarcinoma and typical carcinoid.
authors.affiliation: 1Division of Hematology and Oncology, Department of Medicine, 2Department of Pathology, and 3Division of Cardiothoracic Surgery, Department of Surgery, University of Toledo Medical Center, Toledo, OH.
authors.forename: Kamal K S
authors.initials: KK
authors.lastname: Abbi
authors.forename: Muhammad K
authors.initials: MK
authors.lastname: Hameed
authors.forename: Yuying
authors.initials: Y
authors.lastname: Jiang
authors.forename: Luis E
authors.initials: LE
authors.lastname: De Las Casas
authors.forename: Thomas A
authors.initials: TA
authors.lastname: Schwann
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology* / Q000601:surgery; D000077192:Adenocarcinoma of Lung; D000231:Adenocarcinoma, Papillary / Q000473:pathology* / Q000601:surgery; D000368:Aged; D002276:Carcinoid Tumor / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology* / Q000601:surgery