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Desmoplastic Fibroblastoma (Collagenous Fibroma) of the Foot: A Case Report of a Rare Benign Tumor in an Atypical Patient

Ryan Allen DPM1, Charles Parks DPM2, and Monara Dini DPM2
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  • 1 Podiatric Surgery Resident, Department of Veteran Affairs at San Francisco, San Francisco, CA.
  • | 2 Department of Orthopaedic Surgery, University of California at San Francisco, San Francisco, CA.
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Desmoplastic fibroblastoma (collagenous fibroma) is a rare benign soft-tissue tumor. Often found in the subcutaneous and muscle tissue, it is slowly enlarging and generally not painful or invasive. The literature often describes the tumor to be found in the upper extremities, neck, and back. Full excision of the tumor is the treatment of choice, and the prognosis is generally favorable; there are no documented cases of recurrence after full excision. We present an atypical case of desmoplastic fibroblastoma found on the dorsum of the foot with a larger tumor present in a substantially younger patient than is typical.

Corresponding author: Ryan Allen, DPM, Department of Veteran Affairs at San Francisco, 4150 Clement St, San Francisco, CA 94121. (E-mail: ryandylanallen@gmail.com)