MICROSCAPE / SCIENCE PHOTO LIBRARY MICROSCAPE / SCIENCE PHOTO LIBRARY
Light microscopy of a skin wart showing abnormal growth of the epidermis (purple) and overlying keratin layer (pink). Commonly a response to infection by human papillomavirus. Dome-shaped warts may occur on the hands or fingers. Malignant transformation is rare. Magnification x25 when narrow width printed at 10 cm.
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