Invasive Lung Non-Mucinous Adenocarcinoma

**Semantic type:** Neoplastic Process

**Definition:** An invasive adenocarcinoma that arises from the lung. It is characterized by the absence of tall columnar cells and mucin production. This category includes lepidic adenocarcinoma, acinar adenocarcinoma, papillary adenocarcinoma, micropapillary adenocarcinoma, and solid adenocarcinoma.