DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Close-up of the scalp of a 20 year old female patient, showing a pyogenic granuloma. A pyogenic granuloma is neither pyogenic (producing pus) nor a granuloma (inflamed cells). It is a harmless overgrowth of tiny blood vessels which may appear after a minor injury and is prone to bleeding.
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