Recurrent Dermatofibrosarcoma Protuberans of the Chest Wall: The Sequential Ultrasonographic Features

Dematofibrosarcoma protuberans (DFSP) accounts for approximately 6% of all soft tissue sarcomas and it typically presents as a small superficial soft tissue mass (1). Due to its infiltrating growth pattern, the tumor tends to extend far beyond the clinical margin. This explains the high recurrence rate of 20-15% after excision (2). Ultrasonography is considered an additional valuable method of monitoring this disease (3, 4). Although several reports have described the clinical and the ultrasonographic features of DFSP’s local recurrence, to the best of our knowledge, no studies have reported the sequential ultrasonographic features of this disease from the time of the initial diagnosis to recurrence. We report here on a rare case of late local recurrence of DFSP and we describe the sequential ultrasonographic features.