Lung tumors may be:
Primary
Metastatic from other sites in the body
Primary tumors of the lung may be:
Malignant (see table )
Benign (see table )
The most common lung cancer is non–small cell lung cancer (see Lung Carcinoma).
Classification of Primary Malignant Lung Tumors
Type | Example |
|---|---|
Carcinoma* | |
Small cell lung cancer | Classic small cell Combined small cell |
Non–small cell lung cancer | Adenocarcinoma Adenosquamous Large cell Squamous cell Sarcomatoid |
Other | |
Bronchial gland carcinoma | Adenoid cystic Mucoepidermoid |
Neuroendocrine tumors (carcinoid) | Typical neuroendocrine tumors Atypical neuroendocrine tumors |
Other special entities | Bronchiolar adenoma Ciliated muconodular papillary tumor (CMPT) SMARCA4-deficient undifferentiated tumor Primary pulmonary hyalinizing clear cell carcinoma |
— | |
* Adenocarcinoma in situ and minimally invasive adenocarcinoma are precursor lesions. | |
Classification of Benign Lung Tumors
Type | Example |
|---|---|
Laryngotracheobronchial | Squamous papilloma Glandular papilloma Mixed papilloma Inflammatory myofibroblastic tumor |
Parenchymal | Pulmonary adenoma Pulmonary hamartoma Sclerosing pneumocytoma Leiomyoma Lipoma Schwannoma Neurofibroma |
