Table 1.

List of antibodies used

Antiserum	Source	Dilution	Clone
Citokeratin 20	Novocastra	40	Ks20.8
Desmin	Dako	100	D33
Vimentin	Dako	1000	V9
S100	Dako	10000	Polyclonal
c-kit, CD 117	Dako	200	Polyclonal
CD 34	Novocastra	200	QBEnd/10
Sarcomeric Actin	Dako	200	Alpha-Sr-1
Smooth Muscle Actin	Biogenex	1000	1A4
Osteonectin	Biodesign	50000	N50