Lesions that have Recurred after Prior Radiotherapy
Scope of the Problem
Several hundred thousand patients receive radiotherapy each year in the United States for a large variety of malignancies. The most commonly treated body sites include the lung, breast, prostate, retroperitoneum, mediastinum, intra-abdominal, head/neck, bones (usually metastases), lymph nodes, gynecologic organs and brain. Although radiotherapy technology continues to improve, resulting in ever improving cure rates, there is a measurable relapse rate for every treated site in the human body, ranging all the way from <10% (e.g. – stage I Prostate Cancer) to virtually 100% (e.g. – Glioblastoma Multiforme – Brain). |
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