1326 / 1983
Indications for postoperative radiotherapy
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Positive or close resection margins
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Nodal metastases with extracapsular spread
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Multiple nodal (levels) metastases
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Bone- or cartilage invasion
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Invasion of soft tissues of the neck
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Vascular invasion
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Perineural spread
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Tumor volume
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Tumor spillage
•
Histology