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Radiation Therapy

Radiation Therapy. Radiation Therapy (R/T) For Cancer. About 99% of patients treated with Radiation Therapy (R/T) have malignancies Approximately 60% of patients with cancer require Radiation Therapy About 60% get R/T with the aim to cure About 40% get R/T to relieve symptoms (palliation).

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Radiation Therapy

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  1. Radiation Therapy

  2. Radiation Therapy (R/T) For Cancer • About 99% of patients treated with Radiation Therapy (R/T) have malignancies • Approximately 60% of patients with cancer require Radiation Therapy • About 60% get R/T with the aim to cure • About 40% get R/T to relieve symptoms (palliation)

  3. Radiation Therapy (R/T) For Cancer • Radiation therapy is generally painless • Usually need several weeks of treatment • The aim is to control cancer with the least possible damage to the patient • Physiologic changes to superficial and deep non-target tissues are common • ‘Sunburn’ • Scarring • Newer techniques with multiple portals reduce ‘collateral’ damage

  4. Treatment Planning Courtesy Gilbert Padula, MD CHM ‘97

  5. Treatment Planning Courtesy Gilbert Padula, MD CHM ‘97

  6. Treatment Planning Courtesy Gilbert Padula, MD CHM ‘97

  7. Radiation Therapy Machine (Linear Accelerator) Courtesy Gilbert Padula, MD CHM ‘97

  8. Lung Cancer Pre and Post Radiation Therapy

  9. SIDE EFFECTS and COMPLICATIONS OF RADIATION THERAPY or RADIATION EXPOSURE • Fatigue • Skin reactions (erythema, desquamation) • Loss of appetite • Temporary drop in platelet and WBC counts • After months or years can get complications in kidney, spinal cord, lung, skin, etc • Scarring, ulcerations • Some can be lethal, such as induction of a secondary tumor

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