J Buon
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To classify ipsilateral in-breast cancer recurrences (IBCR) in patients treated with conservative surgery and radiation therapy, either as new primary tumor (NP) or true recurrence (TR) and to assess the prognostic and therapeutic importance of this classification. ⋯ Recurrences developing after BCT represent different clinical events, having different origin, prognosis and, therefore, requiring different type of treatment. It seems that a significant part of the recurrences that develop in the residual parenchyma, following BCT, are new carcinomas.