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The pathological examination of postoperative. (A) Some lamellar tumor cells, different sized cells, atypia, coarse chromatin, obvious nuclear division, and osteoclast-like cells. (B) Some tumor cells were tubular, while some were fusiform and atypical, with different sizes and in different stages of nuclear division. (C) Some cells are necrosis in the center of the tumor. (D) VIM (+) (4X10). (E) CD56 (+) (4X10). (F) ki-67 40% (4X10). (G) ER (-) (10X10). (H) PR (-) (10X10).
