Huge Dermatofibrosarcoma Protuberans Mimicking a Breast Malignant Tumor with Abscess

Dermatofibrosarcoma protuberans (DFSP) is an uncommon skin cancer that most commonly occurs on the trunk and extremities. DFSP of the breast has rarely been reported, and then is almost always of small size. We report a case of rapid-growing DFSP of the breast with abscess formation mimicking breast cancer, and also make a review of related literature.