前列腺癌是老年男性生殖系统肿瘤中一种常见和预后较差的恶性肿瘤。近年来,我国其发病率逐年上升。前列腺癌的病理组织学形态和临床变化较大,生物学行为较复杂,单纯依靠常规的病理学观察和临床分期对该肿瘤预后的判断存在一定的困难和偏差。作者采用常规病理诊断和免疫组化方法 Prostate cancer is a common and poor prognostic malignant tumor in elderly male reproductive system tumors. In recent years, its incidence in our country has been increasing year by year. Prostate cancer histopathology and clinical changes in the larger, more complex biological behavior, relying solely on the conventional pathological observation and clinical stage of the prognosis of the tumor there are some difficulties and deviations. The authors used routine pathological diagnosis and immunohistochemistry