Phyllodes tumors of the breast are rare fibroepithelial tumors in their malignant form, the gravity lies in high risk of local recurrence. We report two observations of patients admitted for the management of local recurrence of phyllode breast tumor. The average age of our patients was 39 years old. The size of the tumor ranged from 10 cm to 30 cm in diameter, with a localization exclusively on the right. Surgical management consisted of a enlarged tumor resection, followed by radiotherapeutic complement. Histologically, it was a phyllode tumor initially benign with slowly progressive evolution, to a phyllode sarcoma at one patient, and to a liposarcoma in the other. The evolution towards a malignant transformation can be explained in both cases by incomplete previous excisional gestures. This underlines the importance of early diagnosis and surgical management responding to oncological rules