Select the word from the list that best fits the definition

cancer treatments

radio rays
infrared rays
ultraviolet rays
microwave
x-rays
gamma rays

The right answer is X-rays.

Radiation therapy is one of the most widely used methods in the treatment of cancer. It uses different types of radiation (X-rays therapy appears first, than comes the gamma rays and other particles), which damage and destroy tumors, and can be combined with surgery or chemotherapy. It can be external (teletherapy) or internal (brachytherapy).

Explanation:

Select the best terms from the drop-down menus that fit the nuclear medicine descriptions.

gamma-ray detection from tracers  

assess disease progression, tissue function  

a hybrid scan that involves nuclear medicine and X-ray imaging  

radiation treatment near or within the tumor fro