Verrucous carcinoma (VC), also known as epithelioma cuniculatum, of the foot is an uncommon low-grade squamous cell carcinoma with slow, progressive local invasion with minimal dysplasia and low potential for metastasis. We report on a case of VC and the enhancement pattern associated with it on magnetic resonance (MR) imaging. MR imaging revealed a plantar ulcer with an interesting pattern of enhancement at the base of the mass. The interface between the mass and the normal stroma exhibited a fine-filamentous pattern of enhancement, analogous to teased cotton wool, with impressive correlation to the histological appearance of our specimen. It is our opinion that VC could be included in the differential of a plantar ulcer associated with a mass that exhibits this enhancement pattern.
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