The mediastinum is surrounded by the breastbone in front, the spine in back, and the lungs on each side. Mediastinal tumor resection removes tumors in this area of the chest cavity.

Regions of the Lung
BQ00042_97870_1_Regions_Lung
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Cancerous tumors must be removed to prevent local tissue damage and 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, esophagus, or spinal cord.

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