Seventeen cases of neuropathic foot lesions have been detected among approximately 20,000 consecutive cases of diabetes — an incidence of 1:1100. Additional cases have probably escaped recognition.

A plantar fibroma, which grows slowly over time, can develop on one foot or both feet. The nodule is typically less than 1 inch in size. A single lesion is referred to as a plantar fibroma.

A 35-year-old man presents with a chief complaint of purple discoloration of his toes and associated skin lesions that have been present for the past month.