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Since dermatofibrosarcoma protuberans often starts without symptoms, it is difficult to diagnose early. This type of skin cancer is often mistaken for other skin conditions. If cancer is suspected, your doctor may recommend:
Biopsy: Removing a piece of the lesion and studying it under a microscope. Learn more about biopsy.
MRI: Determining the size of the tumor with this imaging test. Learn more about MRI.