图示一个小的良性肝腺瘤，一种不常见的良性瘤，可见周围界限清楚；也可以看到肝脏的功能得以维持，因为腺瘤被产生的胆汁染成绿色。
Here is a small hepatic adenoma, an uncommon benign neoplasm, but one that shows how well-demarcated an benign neoplasm is. It also illustrates how function of the normal tissue is maintained, because the adenoma is making bile pigment, giving it a green color.