PMC3638567_01
Large ulcerating lesion on the plantar surface of the calcaneus of the right foot.
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fig1
We report the case of a 74-year-old farmer, with a 6-year history of a large ulcerating lesion on the plantar surface of the calcaneus of his right foot (Figure 1).
Verrucous carcinoma. This biopsy specimen shows well-differentiated neoplastic nests of squamous epithelium extending into the dermis.
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fig2
Morphologic picture showed a large deep biopsy occupied by an ulcerated, polypoid mass characterized superficially by hyperkeratosis, parakeratosis, and acanthosis; deeply the tumor invaded with broad strands that often contained keratin-filled cysts in their center (Figure 2).
CT scan 3D of lower limb.
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fig3
The tumour had expanded beneath the bone as confirmed by CT scan (Figure 3).