SIOP - Indications for Flank RT
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High risk stage 2 (except blastemal type)
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Stage 3 with intermediate- or high-risk
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positive margins
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localised residual tumour
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localised tumour rupture
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lymph node positivity
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Stage 4 – abdominal RT indicated according to
the local stage (1,2 or 3) of primary tumour and
post-op histology