Occult Lung Adenocarcinoma

**Semantic type:** Neoplastic Process

**Definition:** A lung adenocarcinoma detectable by sputum cytology only. The primary tumor is undetectable radiographically or during bronchoscopy; therefore, it can not be assessed.

**Synonyms:** - Occult Adenocarcinoma of Lung - Occult Adenocarcinoma of the Lung