Is there a shadow in the lungs lung cancer

Lung examination has shadows, and can not be diagnosed as lung cancer. Because when the patient has pneumonia or tuberculosis, there will also be shadows on the lungs. Suggestions: further blood tests, sputum tests and other related tests. If lung cancer is suspected, it is also necessary to do enhanced CT of the lungs, and then conduct bronchoscopy to take pathology to confirm whether lung cancer is diagnosed.