Fig. 6

Histopathological images at different magnifications. A Hematoxylin and eosin with × 2 magnification, B Hematoxylin and eosin with × 4 magnification, C Hematoxylin and eosin with × 10 magnification, D Hematoxylin and eosin with × 20 magnification; lots of multinucleated giant cells blue arrows),