Immunohistochemically, the tumor cells were strong positive for vimentin and desmin, only local positive for CD34, ER and PR, but all tumor cells were negative for S-100 protein, NF and CK.

• 免疫组化结果:瘤细胞desmin及vimentin呈弥漫强阳性表达,actin、CD34、ER和PR染色稍弱、呈灶状分布,而S-100蛋白、NF和CK均阴性。