低倍镜下显示移行细胞癌。肿瘤表面的叶子样乳头状突起突向左侧。分化较好,类似于尿道上皮,不过确实是肿瘤,未见向右侧浸润。
A urothelial carcinoma of the urothelium is shown here at low power to reveal the frond-like papillary projections of the tumor above the surface to the left. It is differentiated enough to resemble urothelium, but is a mass. No invasion to the right is seen at this point.