DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Pyogenic granuloma on the base of a 37 year old woman's thumbnail. A pyogenic granuloma is neither pyogenic (producing pus) nor a granuloma (inflamed cells). It is a harmless overgrowth of tiny blood vessels, which often appears after minor injury and is prone to bleeding. The growth will normally disappear without treatment but can be removed by electrocautery, cryosurgery or more conventional surgery.
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