## 4 Conclusions  
Phylodes tumors are characterized by a rapid growth, have a high potential for recurrence, as well as the potential for malignant transformation. Large phyllodes tumors, those with onsets at an older age, and recurrent phyllodes tumors are more often associated with borderline or malignant tumors, have an indication for wide excision up to a simple mastectomy, without lymph node dissection. An accurate preoperative histopathological diagnosis allows the correct planning of surgery, with immediate breast reconstruction, when necessary, thus avoiding re-operations. Tumor prognosis is very good if surgical excision is wide enough and adjuvant therapy is no longer necessary. Conceptualization, D.G., T.H., C.D.M., S.C., L.G., C.O. ; Data cura-tion, D.G. and T.H. ; Formal analysis, C.D.M. and T.H. ; Investigation, S.C. and C.O. ; Methodology, D.G., T.H., H.C., C.D.M., L.G. ; Project administration, L.G. ; Resources, S.C. and C.O. ; Software, D.G. and T.H. ; Supervision, D.G., T.H., C.D.M. and L.G. ; Validation T.H., D.G., C.D.M., T.H. and S.C.; Visualization, S.C.; Writing--original draft, D.G., T.H., C.D.M. and C.O. ; Writing--review and editing, D.G., T.H., and H.C. All authors have read and agreed to the published version of the manuscript. This research received no external funding. The study was conducted according to the guidelines of the Declaration of Helsinki, and approved by the Institutional Review Board (or Ethics Committee, protocol code CLECS-2019-3, 27 th of January, 2019). Informed Consent Statement: Informed consent was obtained from subject involved in this paper. The data presented in this study are available on request from the corresponding author. The data are not publicly available due to ethical reasons (data being registry data). The authors declare no conflict of interest. References  
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