Abstract
Atypical adenomatous hyperplasia is the only known precursor lesion of lung adenocarcinomas (ACs) so far. Here, we describe a new dysplastic lesion in the bronchioles of peripheral lung for which we propose the name bronchiolar columnar cell dysplasia (BCCD). Eight of fourteen BCCDs were successfully analyzed by means of comparative genomic hybridization (CGH). The average number of chromosomal aberrations was 2.6 in BCCD and 14.7 in concomitant AC. Among the aberrations were losses of 3p, 9, 13, 14 and gains of 1q, 17, 19q and 20q. Summarizing our data from morphological and genetic analysis, we conclude that BCCD is a preneoplasia of the bronchiolar epithelium and most probably represents an additional precursor lesion of lung adenocarcinomas.
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Acknowledgements
We gratefully acknowledge the support by the Austrian Research Fund (FWF project P14759) and the Styrian Cancer Society Foundation (to HHP). RU and SP were supported by the Austrian National Bank Jubilee Fund (Projects OeNB 7645 and 8454), which is also gratefully acknowledged.
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Ullmann, R., Bongiovanni, M., Halbwedl, I. et al. Bronchiolar columnar cell dysplasia—genetic analysis of a novel preneoplastic lesion of peripheral lung. Virchows Arch 442, 429–436 (2003). https://doi.org/10.1007/s00428-003-0797-z
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DOI: https://doi.org/10.1007/s00428-003-0797-z