Abstract
Lepidic growth adenocarcinoma is defined as tumor cells proliferating
along the surface of intact alveolar walls without stromal or vascular
invasion pathologically
(1). Travis et
al . (2) proposed a classification of lung adenocarcinoma based on the
International Association for the Study of Lung Cancer (IASLC), the
American Thoracic Society (ATS), and the European Respiratory Society
(ERS) recommendations. They did not use the terms bronchioloalveolar
carcinoma or mixed subtype, and they classified adenocarcinoma in situ
(AIS) as pure lepidic growth, and minimally invasive adenocarcinoma
(MIA) as predominant lepidic growth containing invasion foci of less
than 5 mm for small (less than 3 cm) solitary adenocarcinomas.In
addition, invasive lepidic predominant adenocarcinoma (LPA) was defined
as a lepidic growth containing invasion foci of more than 5 mm. They
described that solitary adenocarcinomas with pure lepidic growth, termed
“AIS”.
We report the case of a young patient who had no medical history and
presented to the ER with acute dyspnea and cough.