Abstract
Objectives: There is limited information regarding risk factors for distant recurrence in patients with late ipsilateral breast tumor recurrence (IBTR). Methods: Late IBTR was defined as IBTR occurring >5 years after the initial surgery. Seventy-eight patients with late IBTR were reviewed to examine the risk factors of distant recurrence. Results: The negative estrogen receptor and positive HER2 statuses of IBTR were significantly correlated with poorer distant disease-free survival (p = 0.03 and 0.02, respectively). Multivariate analyses demonstrated that the HER2 status of IBTR was an independent predictive factor of distant recurrence (p = 0.04). Conclusions: The results of our retrospective, single-institution study revealed that the HER2 status of IBTR was an independent predictive factor of distant recurrence in patients with late IBTR.
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