Clinical Features of Bronchioloalveolar Carcinoma with New Histologic and Staging Definitions

摘要

IntroductionTo assess clinical features of bronchioloalveolar carcinoma (BAC) based upon the 1999 WHO Classification (“pure BAC”), compare pure BAC patients with patients previously diagnosed as BAC not meeting the 1999 definition, and compare survival changes of pure BAC based on the old and new (2009) staging systems.