what is done in a lung biopsy
A lung biopsy is done to: 1  Diagnose certain lung conditions, such as sarcoidosis or pulmonary fibrosis. 2  In rare cases, a lung biopsy may be done for severe pneumonia, especially if the diagnosis is not clear.3  Diagnose suspected lung cancer. lung biopsy removes a small piece of lung tissue which can be looked at under a microscope. The biopsy can be done in four ways. The method used depends on where the sample will be taken from and your overall health.