title: Ultrastructural comparison of "alveolar" and "solid" areas in bronchioloalveolar carcinoma.
abstract: The purpose of this study was to compare the ultrastructural features of bronchioloalveolar carcinomas, contrasting the well-differentiated alveolar component and the poorly-differentiated solid component in the same tumor. We studied 7 cases of non-mucinous bronchioloalveolar carcinomas by electron microscopy. Two of these cases showed lamellar bodies in both the alveolar and solid components and the remaining 5 cases revealed Clara cell granules in both components. We conclude that the neoplastic cells in bronchioloalveolar carcinoma retain their ultrastructural phenotypes after becoming invasive carcinoma with loss of alveolar differentiation.
authors.affiliation: Department of Pathology, North Shore University Hospital, Manhasset, New York 11030, USA.
authors.forename: Farbod
authors.initials: F
authors.lastname: Darvishian
authors.forename: Beth
authors.initials: B
authors.lastname: Roberts
authors.forename: Saul
authors.initials: S
authors.lastname: Teichberg
authors.forename: Hajdu I
authors.initials: HI
authors.lastname: Steven
mesh_terms: D002282:Adenocarcinoma, Bronchiolo-Alveolar / Q000473:pathology / Q000648:ultrastructure*; D000368:Aged; D000369:Aged, 80 and over; D002454:Cell Differentiation; D003593:Cytoplasm / Q000648:ultrastructure; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology / Q000648:ultrastructure*; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged