Micropapillary-predominant adenocarcinoma of the lung
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Micropapillary-predominant adenocarcinoma of the lung is a histological subtype of invasive non-mucinous invasive adenocarcinoma of the lung.
In 2011, the International Association for the Study of Lung Cancer (IASLC), American Thoracic Society (ATS), and European Respiratory Society (ERS) 1 introduced a new classification and terminology for adenocarcinoma of the lung, which is now divided into 'preinvasive', 'minimally invasive', and 'invasive'.
The term bronchoalveolar carcinoma (BAC) has been retired, and it is recommended that all invasive adenocarcinomas be classified in terms of the "predominant" comprising histology 1. Both mucinous and non-mucinous adenocarcinomas typically consist of a mixture of histologic patterns, but reporting of the predominant subtype (lepidic, acinar, papillary, micropapillary, or solid growth) is specifically recommended for non-mucinous lesions, with all mucinous tumors placed in a separate category.
- 1. Travis WD, Brambilla E, Noguchi M et-al. International association for the study of lung cancer/american thoracic society/european respiratory society international multidisciplinary classification of lung adenocarcinoma. J Thorac Oncol. 2011;6 (2): 244-85. doi:10.1097/JTO.0b013e318206a221 - Pubmed citation