Tumor in the plantar region: dermatofibrosarcoma protuberans in an infrequent topography

Dermatofibrosarcoma protuberans is a rare mesenchymal tumor; it is locally aggressive and presents high rates of local recurrence. It may present as a nodular or plaque vegetating lesion. It mainly affects the trunk and proximal limbs, being rare in the distal extremities. Biopsy and immunohistochemistry help confirm the diagnosis. The authors report a case of dermatofibrosarcoma protuberans with plantar region involvement, a rare presentation. To the best of the authors' knowledge, only 11 cases of involvement of the feet were described in the international literature. (C) 2020 Published by Elsevier Espana, S.L.U. on behalf of Sociedade Brasileira de Dermatologia.