Pulmonary cysts are round, thin walled sacs of tissue found within the lung. These structures usually contain air but occasionally also contain fluid or solid material. A pulmonary cyst may be present at birth or form as the lungs age. Multiple cysts can be associated with cystic lung diseases and can cause respiratory symptoms (eg. chest pain, shortness of breath, cough).
Pleural effusion, sometimes referred to as “water on the lungs,” is the build-up of excess fluid between the layers of the pleura outside the lungs. The pleura are thin membranes that line the lungs and the inside of the chest cavity and act to lubricate and facilitate breathing. Normally, a small amount of fluid is present in the pleura
Pulmonary fibrosis is a lung disease that occurs when lung tissue becomes damaged and scarred. This thickened, stiff tissue makes it more difficult for your lungs to work properly.
A hamartoma is a benign (non-cancerous) growth made of an abnormal mixture of normal tissues and cells from the area in which it grows. Pulmonary (lung) hamartomas can cause difficulty breathing, coughing up blood, and trigger pneumonia.
Lung metastases are formed by the spread of cancer from other organs to the lung.
A lesion is an abnormality seen on a lung-imaging test. A lung lesion may involve small to large areas of your lung(s), and the severity of the underlying condition may range from relatively minor to life-threatening. These lesions will need further work up to for a diagnosis.
