They were taken by a 50-year-old man who had developed lesions on his feet after his new shoes rubbed.
The man, who was obese, had no idea he was suffering from diabetes, doctors said.
Damage: The images show how quickly the infection in the diabetic man's foot took hold - going from a red lesion on day one to a wound in urgent need of surgery. The 50-year-old man had developed lesions on his feet after his new shoes rubbed
The small lesions quickly escalated into a full-blown infection - within days his right foot was black, weeping pus and in urgent need of surgery.
His story, reported in the New England Journal of Medicine, highlights the devastating impact diabetes can have on all parts of the body - especially the feet.
Every 30 seconds, someone in the world with the condition has a lower limb amputated, according to the charity Diabetes UK.