Congenital dermatofibrosarcoma protuberans in a seven-month-old infant initially misdiagnosed as infantile myofibroma: A case report

Figure 5 Final surgical specimen confirming classic dermatofibrosarcoma protuberans. A: Low power hematoxylin and eosin image showing a dermal based spindle cell tumor with infiltrative extension into the subcutaneous adipose tissue in a characteristic honeycomb pattern (× 40 magnification, scale bar = 500 μm); B: Medium power hematoxylin and eosinimage demonstrating the classic storiform (cartwheel) arrangement of uniform spindle cells (× 100 magnification, scale bar = 200 μm); C: Immunohistochemical staining showing strong, diffuse positivity for CD34 antigen in the tumor cells (× 200 magnification, scale bar = 100 μm).