还是考虑良性病变。

This is an interesting case. It is difficult to make a diagnosis based on the photos. It is true that it looks  benign. However, Please submit entire tissue for microscopic examination. Metaplastic carcinoma and adenosquamous carcinoma need to be excluded before a benign diagnosis is made.

Also some CK stains may be done

学习了

reasonable

此病例鳞状分化混有腺体的部分，鳞状分化的区域没有肌上皮，期间的梭形细胞CK阴性；

另一部分梭形细胞区域，CK阳性

因而是一个低度恶性腺鳞癌和梭形细胞化生性癌的混合。

组化结果请大家下载上一个帖子的附件，此病例在今年北京市病例讨论会讨论过，谢谢。