Nodular Fasciitis Complicating a Staged Surgical Excision of Dermatofibrosarcoma Protuberans

Figure 2

(a) 20x magnification of original punch biopsy specimen: a diffuse dermal proliferation of spindle cells extending into the subcutaneous fat. (b) 200x magnification of original biopsy specimen: a hypercellular dermal proliferation of spindle cells in a storiform pattern. Infiltration of fat in a “honeycomb” pattern is noted. (c) 20x magnification of original biopsy specimen: spindle cells stain diffusely positive for CD34.

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