Head and Neck Cancer

1. In radiation therapy tumor control must be balanced with ______ tissue complications.
4. D_80% (cm) = MeV/_____.
5. D_max (cm) = MeV/_____.
8. This is the main source of photon contamination in electron beams.
11. This target volume includes a margin for geometric variations.
12. Modern treatment of head and neck cancers often utilize this technique.
13. The goal of radiation therapy can be either curative or ______.
14. What does the M in TNM staging stand for?

2. Historical head and neck radiation therapy used two AP and two ______ fields.
3. In inverse planning the dose calculation is done __________.
4. Range(cm) = MeV/_____.
6. 90% of head and neck cancers are ______ cell carcinoma
7. A material that is softened in warm water and molded to create a H&N immobilization device.
9. In inverse planning optimization the beam fluence is divided into _______.
10. Photon contamination _______ with energy.
11. In historical head and neck cancer treatments these glands would not be spared.