Lung Signet Ring Cell Adenocarcinoma

**Semantic type:** Neoplastic Process

**Definition:** An extremely rare primary lung adenocarcinoma characterized by the presence of signet ring cells.

**Synonyms:** - Lung Signet Ring Adenocarcinoma - Lung Signet Ring Cell Carcinoma - Lung Signet-Ring Cell Carcinoma - Primary Lung Signet Ring Cell Adenocarcinoma