Table VI.

Immunohistochemical markers used for differential diagnosis of DFSP.

Marker	Expressed	Not expressed
CD34	DFSP, inflammatory fibrosarcoma, myofibrosarcoma, angiosarcoma, epithelioid sarcoma	Dermatofibroma, malignant fibrous histiocytoma, pediatric myofibromatosis, fibrosarcoma, hypertrophic scars or keloids
Factor XIIIa	Dermatofibroma	DFSP
Stromelysin III	Dermatofibroma	DFSP
Apolipoprotein D	Dermatofibroma	DFSP
CD163	Dermatofibroma	DFSP
D2-40	Dermatofibroma	DFSP

DFSP, dermatofibrosarcoma protuberans.