Authors: Barreiro, Aileen Christine N. ,Dayrit, Johannes F. et al Introduction: Dermatofibrosarcoma protuberans (DFSP) is a rare, slow-growing soft tissue tumor accounting for less than 0.1% of all malignant neoplasms and approximately 1% of all soft tissue sarcomas. Case Summary: We report a case of a 27-year-old female who presented with a 1-year history of a gradually enlarging firm, erythematous to violaceous nodule on the right anterolateral leg. Shave excision biopsy was done, and revealed spindle-shaped fibroblasts arranged in a storiform pattern around an indistinct vasculature.
Histopathologic diagnosis revealed dermatofibrosarcoma protuberans. There was prominent, diffuse, positivity for CD34 by immunohistochemistry. The cytogenetic analysis revealed a t(17;22) translocation, confirming our working impression. The patient underwent wide excision with frozen section. All…