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.
Lymphoedema is a type of swelling that can occur for many reasons, including treatment for prostate cancer. Lymphoedema from prostate cancer treatment usually causes swelling in one or both legs, the tummy or around the genital area. The lymph nodes (glands) are part of the lymphatic system.