Lung tumors are neoplastic lung nodules. These include:
Primary tumors of the lung/pulmonary system:
Bronchial leiomyoma, a rare, benign tumor
Lung cancer, the term commonly used to refer to carcinoma of the lung
Pulmonary carcinoid tumor
Pleuropulmonary blastoma
Neuroendocrine tumors of the lung
Lymphomas of the lung. [Source: Wikipedia 
]
