DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Cutaneous horn. Small cutaneous horn on the scalp of a 94-year-old male patient. Cutaneous horns are tumorous growths that result from an overgrowth of the skin protein keratin. They are most often benign (non-cancerous) but may be malignant (cancerous) or pre-malignant (pre-cancerous). Treatment is with surgical removal.
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