Microsoft Word - RadBio_Programme_ParisSept2017

Introduction

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Reirradiation of previously treated areas: why?

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New primary tumor

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Cancer survivors are at an increased risk of developing

secondary malignancies

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Pts still retain more risk (e.g. molecular predisposition)

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Aetiological factors can continue (e.g. Smoking)

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Therapy itself

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Within or close to initial high-dose treatment volume

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Recurrence

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Within or close to original gross tumor volume

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Nodes and metastases