Many complications of diabetes mellitus involve the feet. These include infections, neuropathy, vasculopathy, and poor wound healing. Neuropathy causes chronic pressure or friction on an area of sensory loss and occasionally causes verrucous skin lesions. We describe a diabetic patient, complicated by necrotizing fasciitis, who developed a verrucous skin lesion on a skin graft site. The verrucous skin lesion was treated successfully with combined topical 5-fluorouracil and vitamin D3 application.

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