Lung Fetal Adenocarcinoma

**Semantic type:** Neoplastic Process

**Definition:** A rare morphologic variant of lung adenocarcinoma characterized by the presence of glandular structures containing glycogen-rich cells forming tubules that resemble fetal lung tubules.

**Synonyms:** - Fetal Adenocarcinoma - Fetal Lung Adenocarcinoma - Fetal adenocarcinoma - Fetal adenocarcinoma - Pulmonary Adenocarcinoma of Fetal Type - Pulmonary Endodermal Tumor Resembling Fetal Lung - Well-Differentiated Fetal Lung Adenocarcinoma