Background: Dermatofibrosarcoma protuberans (DFSP) is a rare malignant tumor. The diagnosis of DFSP is occasionally difficult because it progresses slowly and can be mistaken as keloid or hypertrophic scar. Dermoscopy has been widely used to improve accuracy of diagnosing various skin lesions. However, data focusing on the dermoscopic difference DFSP and keloid/hypertrophic scar have been limited. Objectives: To describe the dermoscopic difference DFSP and keloid/hypertrophic scar. Methods: We assessed a total of 21 patients with biopsy-proven DFSP and of 85 patients with and keloid/hypertrophic scar in our clinic. Results: In DFSP, pinkish background (93.2%) and vascular structure (82.1%) were the most frequently observed, followed by pigmented network (75.4%), structure-less brownish and depigmented area (66.7%), whitish streak (33.3%) and surface scaling (19.0%). In keloid/hypertrophic scar, vascular structure (64.4%), depigmented area (52.9%) and whitish streak (35.5%) were observed. After comparing the dermoscopic features between DFSP and keloid/hypertrophic scar, we found that mesh-like vascular structure, pigmented network, structure-less brownish area and surface scaling were more specific dermoscopic features of DFSP than keloid/hypertrophic scar (p<0.05). Conclusion: Dermoscopic examination of vascular structures and pigmented network can be a useful diagnostic clue for differentiating DFSP from keloid/hypertrophic scar.