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Immunohistochemical Findings of Conventional DFSP and DFSP-FS
DFSP, dermatofibrosarcoma protuberans; DFSP-FS, dermatofibrosarcoma protuberans-fibrosarcomatous variant.
CD34, high (≥50%) or low (<50%) according to percentage of immunoreactive cells; Ki-67 and p53, positive (>5% immunoreactive nuclei) or negative (<5%).
