River Basins. A river basin is an area of land drained by a river and its tributaries. River basins have typical features, these include: Tributaries-smaller rivers flowing into a larger river. A Watershed-an area of highland surrounding the river basin.A confluence-where a river joins another river.Source-the start of a river. river basin is an area of land drained by a river and its tributaries. River basins have typical features, these include: Tributaries-smaller rivers flowing into a larger river. A Watershed-an area of highland surrounding the river basin.
Fatigue. Fatigue is one of the most common side effects of radiation therapy for breast cancer. Fatigue may be caused by anemia, poor appetite or depression. It may also be related to toxic substances that are produced when cancer cells break down and die.adiation pneumonitis. Radiation pneumonitis is an uncommon side effect of radiation therapy for breast cancer. It may occur a few weeks to several months after radiation treatment. It occurs more often in women who receive methotrexate and 5-fluorouracil (Adrucil, 5-FU) at the same time as radiation therapy.
Late Effects of Radiation Therapy. Radiation therapy is applied to the areas of the body that are affected by cancer. Aftereffects occur only in the area that was treated. In some cases, treatment may also include healthy tissue. This is to make certain that all of the cancer is treated. Newer methods of radiation therapy help minimize damage to normal tissue. Treatment is directed to the same area each time. Yet, radiation rays sometimes scatter. Tissues and organs near the cancer site might receive small doses of radiation if this happens. Late effects of radiation could include: Cataracts. Fatigue. Dry mouth. Permanent hair loss. Problems with thyroid or adrenal glands.