What is a cyst on the lungs?

Lung cysts are often caused by congenital abnormalities. For lung cysts, sometimes they will appear as low-density lesions, which are often gas-containing cysts; sometimes they may also appear as fluid-containing cysts, which are relatively high-density on ct.n For lung cysts, if there is no infection, it is only a simple lung cyst. Normally, it does not cause obvious clinical symptoms, and it does not need special treatment. However, lung cysts can sometimes be associated with infection, which can cause cough, expectoration and other related symptoms. Sometimes, they can even cause respiratory difficulties and other related manifestations. These need to be actively treated. Even localized pulmonary cysts with recurrent infections may require consideration for surgical treatment.