And so, by inserting a tube and a camera through the tube, we can unroof this air cell and we are right at the pituitary base, and we can take out a tumor without having to disrupt normal anatomy of the skull.

所以，通过插入一根管子和一个摄像，可以打这个空，到了垂体底部，可以取出一个肿瘤，同时不破坏骨的正常解剖。