Table 1.

Antibodies used for immunohistochemistry

Antibody	Company	Clone	Dilution
Cytokeratin 5/6	Dako, Carpinteria, CA	D5/16 B4	1:50
Pankeratin AE1/3	Dako, Carpinteria, CA	AE1/AE3	1:100
P63	Thermo, Fremont, CA	4A4	1:200
Vimentin	Ventana, Tucson, AZ	V9	Predilute
Smooth Muscle Actin	Cell Marque, Rocklin, CA	IA4	Predilute
Calponin	Dako, Carpinteria, CA	CALP	1:50
S100	Dako, Carpinteria, CA	n/a	1:500