Phylloides tumor in the breast is a rare fibroepithelial tumor, which is often seen in young adult women. Phylloides tumor of the breast accounts for about 1% of all breast tumors and approximately 3% of all fibroepithelial tumors. Pre-operative diagnosis is difficult. Since there aren't any specific mammography and ultrasound findings, they cannot be distinguished from fibroadenomas through these imaging methods and are mostly followed up as if they are fibroadenomas. Patients often present with the complaint of a mass that has been present for a long time and had started to grow suddenly. The primary preferred approach for treatment is wide local excision with negative surgical margins. Coexistence of invasive ductal carcinoma with phylloides tumor in the same breast is a very rare occurrence. We present in this article, a 42-year-old female patient with an invasive ductal carcinoma inside a phylloides tumor in the same breast.