There are shadows in the lungs. No symptoms for several years. Is it good?

For lung shadow for several years without symptoms this situation, also need to go to the hospital to carefully evaluate the condition. Although in most cases the lung shadow for a long time to maintain stability or progress is not obvious, indicating that the possibility of benign lesions is relatively large, such as may be some old lesions, or may be atelectasis and other related circumstances, but also need to be alert to the possibility of malignant lesions. There is a special type of lung cancer called pneumonic lung cancer. Pulmonary lung cancer may develop slowly in the early stage, and the clinical symptoms are not prominent. However, anti-infection treatment is ineffective, and it is easy to ignore in this case. If reading chest ct suspects pneumonic lung cancer, lung biopsy or bronchoscopy lung biopsy may be required for further /confirm/iation.