Occult Lung Non-Small Cell Carcinoma

**Semantic type:** Neoplastic Process

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

**Synonyms:** - Occult Non-Small Cell Carcinoma of Lung - Occult Non-Small Cell Carcinoma of the Lung - Occult Non-Small Cell Lung Cancer - Occult Non-Small Cell Lung Carcinoma - occult stage non-small cell lung cancer