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Overview of Lung Tumors

by Anne S. Tsao, MD

Lung tumors may be primary or metastatic from other sites in the body. Primary tumors of the lung may be malignant (see Classification of Primary Malignant Lung Tumors) or benign (see Classification of Benign Lung Tumors). The most common lung cancer is non–small cell lung cancer.

Classification of Primary Malignant Lung Tumors

Type

Example

Carcinoma

Small cell

Oat cell

Intermediate cell

Combined

Non–small cell

Adenocarcinoma

Acinar

Bronchioloalveolar

Papillary

Solid

Adenosquamous

Large cell

Clear cell

Giant cell

Squamous cell

Spindle cell

Other

Bronchial gland carcinoma

Adenoid cystic

Mucoepidermoid

Carcinoid

Lymphoma

Primary pulmonary Hodgkin

Primary pulmonary non-Hodgkin

Classification of Benign Lung Tumors

Type

Example

Laryngotracheobronchial

Adenoma

Hamartoma

Myoblastoma

Papilloma

Parenchymal

Fibroma

Hamartoma

Leiomyoma

Lipoma

Neurofibroma

Schwannoma

Sclerosing hemangioma

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