Bednar Tumour Occurring after Malignant Melanoma Excision

Table 1

Immunohistochemical features recognizing DFSP (dermatofibrosarcoma protuberans) variants.

DFSP variants	Vimentin	S100	CD34	-actin	HHF35	Desmin
Classic	+	-	+	-	-	-
Myxoid	+	-	-	-	-	-
Bednar tumour	+	- (+ pigmented cells)	+	-	-	-
Fibrosarcomatous	+	-	-	-	-	-
Atrophic	+	-	+	-	-	-
Myoid	+	-	-	+	+	-
Giant cell fibroblastoma	+	-	+ (may be weak)	-	-	-