Table 3 Immunophenotypic findings in cellular dermatofibromaa

From: Cutaneous soft tissue tumors: how do we make sense of fibrous and “fibrohistiocytic” tumors with confusing names and similar appearances?

Marker (extent)

Positive

SMA (multifocal)

95%

Desmin (focal)

30%

CD34 (focal)

5%

  1. aFactor XIIIa is usually negative in the lesional cells of cellular dermatofibroma but is expressed in surrounding dermal fibroblasts