Representative images of tumor histology.

<p>Paraffin sections (5 µm) of the tumors were stained with H&E or specific antibodies to examine histology and gene expression: <b>A</b>) H&E (200X) <b>B</b>) cytokeratin19 (400X) <b>C</b>) smooth muscle actin (200X) <b>D</b>) desmin (100X) <b>E</b>) CD34 (100X). Antigen detection in B–E is by the presence of a brownish-red stain.