Radiation therapy uses high-energy radiation to shrink tumors and kill cancer cells (1). X-rays, gamma rays, and charged particles are types of radiation used for cancer treatment.
1 Lymph nodes of the armpit and neck may also be involved. 2  Viral infections such as infectious mononucleosis may affect the whole body and cause generalized lymph node swelling in various parts of the body, such as neck, armpit or groin.
There are several causes of swollen groin lymph nodes. These are commonly due to infection with bacteria and viruses, or can be due to cancer and tumors. slide 1 of 5. Swelling The causes of swollen groin lymph nodes vary, from conditions such as bacterial infections to sexually transmitted disease to cancer.