It is a diagnostic procedure, in which a piece of lung is taken out for pathological examination. It can be done through bronchoscope (trans bronchial cryobiopsy) or by key-hole surgery of the chest. It is usually performed when other tests fail to give a specific diagnosis and examination of the lung is necessary to make a diagnosis.

It is a form of treatment in which the diseased part of the lung is removed along with some normal tissue on either side of the disease. It can be performed by key-hole or open surgery method.

It is a form of treatment in which the diseased lobe of the lung is removed. It could be for Cancer or one of the non-cancerous conditions like infections or tuberculosis. It can be performed by key-hole or open surgery method. If the remaining lung tissue is normal, lobectomy does not compromise the exercise capacity of the patient and a normal life is possible after lobectomy.

It is a form of treatment in which the entire diseased lung is removed. It could be for Cancer or one of the non-cancerous conditions like infections or tuberculosis. It is usually performed by open surgery method. If the other lung is normal, pneumonectomy does not compromise the exercise capacity of the patient and a normal life is possible after pneumonectomy. However, in the long run it poses a risk to the individual and shortens the overall life of the person.