这是从一个有长期吸烟史的患者切下的膀胱。他曾有血尿。组织学证实膀胱内的肿块是移行细胞癌。尿道上皮的任一处都可能发生移行细胞癌，但膀胱多见。移行细胞癌是多灶性的，有复发倾向。
This bladder was removed surgically from a male who had a long history of smoking. He had presented with hematuria. The opened bladder reveals masses of a neoplasm that histologically proved to be urothelial carcinoma (TCC). TCC can arise anywhere in the urothelium, but is most common in bladder. TCC is often multifocal and has a tendency to recur.
