This is surgery to remove tumors in the area of the chest cavity that separates the lungs.

Regions of the Lung
BQ00042_97870_1_Regions_Lung
© 2011 Nucleus Medical Media, Inc.

Malignant (cancerous) tumors must be removed to prevent the spread of cancer. Without removal or treatment, the cancer could spread to other areas of the body. The cancer could also start to compress organs in the chest, such as the heart, lungs, or esophagus.

Patients who undergo this surgery often have a better prognosis than those who receive either radiation or chemotherapy.