Diagnostic Performance of High-Frequency Ultrasound and Ultra-High-Frequency Ultrasound in Distinguishing Dermatofibrosarcoma Protuberans from Dermatofibroma: A 15-year Period Retrospective Analysis

HFUS and UHFUS demonstrates strong diagnostic utility in differentiating DFSP from DF based on key clinical and sonographic features. These findings support the use of HFUS and UHFUS as a valuable non-invasive tool for preoperative diagnosis. Future studies should validate these criteria in multi-center settings and exploring artificial intelligence integration to further enhance diagnostic accuracy and standardization.