前列腺癌在我国的发病率占各种癌的 1.2～2 0 % [1] ,随着国人平均寿命的延长 ,其发病率及检出率有明显的上升[2 ] 。随着影像学尤其是Ｂ超、ＣＴ、ＭＲＩ的发展 ,典型的前列腺癌术前确诊不难 ,但表现非典型者影像诊断尚有困难。本文回顾性分析了 12例前列腺癌的非典型超声显像 The incidence of prostate cancer in China accounts for 1.2 to 20% of all cancers [1]. As the average life expectancy of Chinese people increases, the incidence and detection rate of prostate cancer have increased significantly [2]. With the development of imaging, especially B-ultrasonography, CT, and MRI, it is not difficult to diagnose a typical prostate cancer before surgery, but there are still difficulties in imaging diagnosis of atypical individuals. This article retrospectively analyzed 12 cases of prostate cancer atypical ultrasound imaging