Nouvelle classification OMS 2015 des adénocarcinomes pulmonaires et prénéoplasies Journal Article

Authors: Lantuejoul, S.; Rouquette, I.; Brambilla, E.; Travis, W. D.
Article Title: Nouvelle classification OMS 2015 des adénocarcinomes pulmonaires et prénéoplasies
Abstract: The 2015 WHO classification of tumors of the lung, pleura, thymus and heart has just been published with numerous important changes from the 2004 WHO classification. The most significant changes involve (1) use of immunohistochemistry throughout the classification, (2) integration of molecular testing for personalized strategies for advanced lung cancer patients, (3) a new classification for small biopsies and cytology, (4) a new classification of lung adenocarcinoma as proposed by the 2011 IASLC/ATS/ERS, (5) restriction of the diagnosis of large cell carcinoma only to resected tumors that lack any clear morphologic or immunohistochemical differentiation. Regarding adenocarcinoma, the terms bronchioloalveolar carcinoma (BAC) and mixed subtype adenocarcinoma have been suppressed and replaced for the former by the term adenocarcinoma in situ (AIS) as a preinvasive lesion to join atypical adenomatous hyperplasia (AAH). A new category has been defined, the minimally invasive adenocarcinoma (MIA), and invasive adenocarcinomas are now classified according to the predominant subtype after subtyping by semi-quantitatively percentage of various subtypes present in 5% increments. The term "lepidic" is restricted to a non-invasive component (previously classified as BAC) present as part of an invasive adenocarcinoma. "Invasive mucinous adenocarcinoma" is used for formerly adenocarcinomas classified as mucinous BAC, excluding tumors that meet criteria for AIS or MIA. The subtypes of clear cell and signet ring adenocarcinoma are discontinued, as well the term of mucinous cystadenocarcinoma, included in the category of colloid adenocarcinoma. Thus new classification of lung adenocarcinoma is sustained by genetics and has clinical impact for therapeutic strategies. © 2015 Elsevier Masson SAS.
Keywords: immunohistochemistry; molecular; adenocarcinoma in situ; minimally invasive adenocarcinoma; invasive adenocarcinoma; invasive mucinous adenocarcinoma; predominant subtype
Journal Title: Annales De Pathologie
Volume: 36
Issue: 1
ISSN: 0242-6498
Publisher: Masson Editeur  
Date Published: 2016-01-01
Start Page: 5
End Page: 14
Language: French
DOI: 10.1016/j.annpat.2015.11.010
PROVIDER: scopus
PUBMED: 26791238
Notes: [New WHO classification of lung adenocarcinoma and preneoplasia] -- Short Survey -- Export Date: 3 March 2016 -- Source: Scopus
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MSK Authors
  1. William D Travis
    611 Travis