What is the difference between a pulmonary cyst and lung cancer?

The difference between lung cyst and lung cancer lies in the nature and treatment options.
1. Different nature: lung cyst is a benign lesion caused by congenital developmental disorder, while lung cancer is a malignant lesion caused by environment and hereditary factors, with strong invasiveness and metastasis.
2. Treatment plan: small-sized lung cysts without obvious clinical symptoms do not need treatment, and regular follow-up examinations are sufficient; only large-sized lung cysts with pain, cough and other manifestations need to be surgically resected, and most of them can be cured after surgery.
Lung cancer needs to determine the treatment plan according to the stage, and in early stage, radical surgery is often adopted for resection, and some patients need to undergo radiotherapy and chemotherapy after surgery; in advanced stage, radiotherapy and chemotherapy are the main treatments.