title: Well-differentiated fetal adenocarcinoma of the lung.
abstract: We describe the case of a 43-year-old woman with a tumor shadow in the upper lobe of the left lung. The tumor was initially suspected to be a carcinoid tumor, following percutaneous needle biopsy. Subsequently, a left upper lobectomy was performed, and a well-differentiated fetal adenocarcinoma was diagnosed histologically. Unlike the biphasic epithelial and stromal features of pulmonary blastoma, it was composed solely of malignant glands of embryonal appearance.
authors.affiliation: Division of Pulmonary and Critical Care Medicine, Sun Yat-Sen Cancer Center Hospital, Taipei, Taiwan.
authors.forename: L H
authors.initials: LH
authors.lastname: Hsu
authors.forename: T L
authors.initials: TL
authors.lastname: Mao
authors.forename: C S
authors.initials: CS
authors.lastname: Shih
authors.forename: T Y
authors.initials: TY
authors.lastname: Chou
authors.forename: S N
authors.initials: SN
authors.lastname: Huang
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology*; D000328:Adult; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology*; D018202:Pulmonary Blastoma / Q000473:pathology*