Conclusion 2D-US had certain value in the differential diagnosis of Pleomorphic adenoma and Adenolymphoma.However, CDF1 and PW had less effect.

• 结论灰阶超声对涎腺多形性腺瘤与腺淋巴瘤的鉴别有一定的价值，而彩色及脉冲多普勒超声对此没有帮助。