235698.fig.004a
(a)
235698.fig.004b
(b)
235698.fig.004c
(c)
235698.fig.004d
(d)
Figure 4: Histopathological findings. Microscopic examination revealed that the tumor consisted of uniform and spindle cells and had a fascicular growth pattern (Hematoxylin & Eosin: 600) (a). Immunohistochemical staining revealed that α-SMA ( 600) (b) and HHF35 ( 600) (c) were expressed in this tumor; MIB-1 index was about 60% (Ki67: 600) (d).