title: [The ultrastructural characteristics of different histological types of bronchiolar-alveolar cancer].
abstract: Morphological study of bronchioloalveolar carcinoma (BAC) was performed by light or electron microscopy in 100 and 33 patients, respectively. BAC-1, 2 and 3 histologic subtypes were established basing on ultrastructural peculiarities which betrayed different cytogenetic origins. Electron microscopic signs of goblet cells were found in cells constituting BAC-1 tumors. BAC-2 tumor cells exhibited ultrastructural characteristics of Clara cells and/or type-II pneumocytes. BAC-3 tumors appeared less differentiated and contained mainly undifferentiated cells and cell clusters displaying various combinations of electron microscopic markers of goblet and Clara cells and type-II pneumocytes.
authors.forename: E A
authors.initials: EA
authors.lastname: Smirnova
authors.forename: L M
authors.initials: LM
authors.lastname: Grinberg
mesh_terms: D002282:Adenocarcinoma, Bronchiolo-Alveolar / Q000145:classification / Q000648:ultrastructure*; D000293:Adolescent; D000328:Adult; D000368:Aged; D001980:Bronchi / Q000648:ultrastructure; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000145:classification / Q000648:ultrastructure*; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged; D011650:Pulmonary Alveoli / Q000648:ultrastructure
vernacular_title: Ul'trastrukturnye osobennosti razlichnykh gistologicheskikh tipov bronkhiolo-al'veoliarnogo raka.