Figure 3.

Comprehensive immunohistochemical staining: a, representative section by H-E stain (×200); b, Cytokeratin (CK) AE1/AE3 (×200); c, CK CAM5.2 (×200); d, CK 34βE12 (×200); e, EMA (×200); f, desmin (×200); g, α-smooth muscle actin (×200); h, p63 (×200); i, S-100 protein (×200); j, CD31 (×200); k, CD34 (×200); l, p53 (×200); m, bcl-2 (×200); n, p16 (×200); o, Ki-67 (×200).