Effects of Radiotherapy in Borderline and Malignant Phyllodes Tumors After R0 Resection

Exclusion Criteria

• •patients who had their initial surgery at other hospitals without accurate baseline data
• •patients who received radiotherapy before surgery
• •those presenting with initial distant metastasis before treatment
• •patients lost to follow-up after treatment
• •patients with a history of or concurrent breast cancer or precancerous lesions in the ipsilateral breast or with breast cancer in the contralateral breast