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The date of first recurrence as locoregional cancer.

The term recurrence defines the return, reappearance or metastasis of cancer (of the same histology) after a disease free period.

Locoregional recurrence refers to the recurrence of cancer cells at the same site as the original (primary) tumour or the regional lymph nodes after a disease free period.


American College of Surgeons 1998. Standards of the Commission on Cancer: Registry Operations and Data Standards (ROADS), Volume II, Commission on Cancer
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