The pathological picture showed the characteristics of an inverted papillma, however, focal areas of cytological atypia were also found.

• 在施行经尿道切除膀胱肿瘤后，排尿阻塞的症状消失，病理检查呈现内翻乳突瘤的特性，但是亦有局部区域有非典型的细胞变化。