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radiation therapy |
Also found in: Dictionary/thesaurus, Medical, Acronyms, Wikipedia, Hutchinson | 0.01 sec. |
radiation therapyor radiotherapy or therapeutic radiologyUse of radiation sources to treat or relieve diseases, usually cancer (including leukemia). The ionizing radiation primarily used to destroy diseased cells works best on fast-growing cancers. However, radiation can also cause cancer (see radiation injury) and is no longer used for benign conditions. Other complications include nausea, hair loss, weight loss, and weakness. Radioactive substances may be implanted in tumours (see nuclear medicine). External radiation involves 10–20 sessions over several months, either after surgical removal of the growth or when surgery is impossible; it can deliver higher doses to deep tumours than implantation. Infrared radiation and ultraviolet radiation is applied with lamps to relieve inflammation. |
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LANCASTER - Cancer patients who have been traveling to the San Fernando Valley to undergo radiation therapy can now receive those services in Lancaster at a local cancer center. Radiation therapy is an important treatment for many cancers, but in some people it causes serious delayed side effects, after it's too late to adjust the amount of radiation used. They point out that failure of radiation therapy to arrest growth of NF2 acoustic tumors is 24% and of non-NF2 tumors, 12%. |
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radiation therapy
