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. Sarcomas of the lung. Some rare vascular tumors of the lung Non-lung tumors which may grow into the lungs: Mediastinal tumors Pleural tumors Metastasis or secondary tumors/neoplasms with other origin: Metastasis to the lung Source: Wikipedia (en)