Case 30

 
Clinical Information
 

A 63-year-old man with a 20-year history of diabetes and peripheral vascular  disease presented with a non-healing ulcer of left foot. He underwent amputation of several toes for dry gangrene in the past.There was a hyperkeratotic,and focally ulcerated lesion on the plantar surface that was debrided several times.The lesion grew much larger. A distal amputation of the foot was performed.

 
 

 

   
 

Gross appearance of the plantar lesion.

 
   
 

Microscopic appearance, low magnification.

 

   
 

Microscopic appearance, High magnification.

 

 

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