DR ISABELLE LAZARETH, ISM / SCIENCE PHOTO LIBRARY DR ISABELLE LAZARETH, ISM / SCIENCE PHOTO LIBRARY
Close-up of the ankle of an elderly female patient, showing healed post-bullous ulcers after skin grafting. This ulceration (that first appeared as blisters) was caused by impaired blood flow due to heart failure (insufficiency). Grafts of skin from the patient helped to assist healing.
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