A procedure in which the doctor inserts a tube into the chest to view the organs in the mediastinum. The tube is inserted through an incision next to the breastbone. The area between the lungs. The organs in this area include the heart and its large veins and arteries, the trachea, the esophagus, the bronchi, and lymph nodes. A doctor who specializes in treating cancer.
Some oncologists specialize in a particular type of cancer treatment.
For example, a radiation oncologist specializes in treating cancer with radiation. Medulloblastomas are sometimes called primitive neuroectodermal tumors. Cells in the skin that produce and contain the pigment called melanin. Melanoma usually begins in a mole. The three membranes that cover the brain and spinal cord.