DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Infected arterial ulcer. Close-up of an arterial ulcer on the leg of an 82-year-old female patient that has become infected with Staphylococcus aureus bacteria. Arterial ulcers (or arterial insufficiency ulcers) are commonly caused by peripheral vascular disease.
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