DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Cutaneous horn. Close-up of a cutaneous horn on the upper eyelid of a 66-year-old female patient. Cutaneous horns are tumorous growths that result from an overgrowth of the skin protein keratin. They are most often benign but may be malignant (cancerous) or pre-malignant (pre-cancerous). Treatment is with surgical removal.
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