SOVEREIGN, ISM / SCIENCE PHOTO LIBRARY SOVEREIGN, ISM / SCIENCE PHOTO LIBRARY
Secondary bone cancer. Coloured computed tomography (CT) scan of an axial (horizontal) section through the pelvis of a male patient with secondary bone cancer. At centre is the sacrum, a continuation of the spine that forms the back of the pelvis. Either side of the sacrum are the two ilium bones, which form the upper parts of the hip bones. The bone (green) has degenerated due to the cancer, which has metastasised (spread) from the primary site, a cancer of the prostate. Spread of cancer to bones causes great pain and the bones have a tendency to fracture. The prognosis is poor. Treatment is with chemotherapy and radiation therapy.
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