True about lung carcinoma is -

Repeated question Lung cancer, also known as lung carcinoma,is a malignant lung tumor characterized by uncontrolled cell growth in tissues of the lung. If left untreated, this growth can spread beyond the lung by the process of metastasis into nearby tissue or other pas of the body.Most cancers that sta in the lung, known as primary lung cancers, are carcinomas.The two main types are small-cell lung carcinoma (SCLC) and non-small-cell lung carcinoma (NSCLC).The most common symptoms are coughing (including coughing up blood), weight loss, shoness of breath, and chest pains.