抑制素灶状阳性，Ki-67约15%，如下图

stain CD99, CD10, calretinin, cam5.5, pan-ck.

Most likely it is sex cord strima tumor, especially sarcomatoid granulosa cell tumor.  poorly differentiated sertoli leydig cell tumor should be considered also.

  some tubule structure

 纤维肉瘤

 首先考虑颗粒细胞瘤

伴少量性索成分的间质肿瘤

 汇报：本例会诊才回来，会诊结果是：“梭形细胞肿瘤，考虑不能确定恶性潜能的平滑肌瘤”，CK-,Vim+,inhibin-,calretinin-,SMA+,Desmin-,

Ki-67  (10%)