Table 1.

Primary antibodies used in this study

Antigen	Source	Clone	Dilution
Vimentin	Amersham	V9	1:100
α-smooth muscle actin	Dako	IA4	1:100
Melanoma-associated antigen (MAA)	Dako	HMB-45	1:40
CD34	Dako	Qbend/10	1:20
Laminin	Dako	LAM-89	1:400
Collagen I	Dako	IV	1:400
CD117	Dako	Poly	1:50
Desmin	Dako	D33	1:100
S100 protein	Dako	4C4.9	1:100
Melan-A	Dako	A103	1:40
Synaptophysin	Dako	snp88	1:50
Chromogranin	Dako	Poly	1:200
CD56	Dako	Poly	1:100
Keratin 18	Novocastra	DC-10	1:50