腮腺类实性腺淋巴瘤的超声表现

Ultrasonic appearances of parotid solid-like adenolymphomas

目的探讨腮腺类实性腺淋巴瘤的超声表现,提高对本病的诊断水平。方法收集15例手术标本证实的腮腺腺淋巴瘤超声声像图资料,并分析病变的部位、大小、内部回声、后方回声、肿瘤血管情况。结果 15例皆为男性,平均年龄57岁。超声显示,15例腮腺腺淋巴瘤均位于腮腺浅叶,其中11例位于浅叶的下极。8例为椭圆型,3例为圆形,4例不规则型。15例边缘清晰。13例显示包膜,2例可疑显示。8例为低-等混杂回声,5例为低回声,2例为中等回声。7例内部回声较均匀,8例为不均匀。15例均表现病变后方回声增强。14例有CDFI资料,其中血流信号丰富者5例,血流信号中等者5例,血流信号稀疏者4例;血流分布在周边者6例,分布在内部者5例,周边及内部均显示者3例。结论腮腺类实性腺淋巴瘤的超声表现有一定的特征性,有助于其明确诊断。

Objective To study the ultrasonic appearances of parotid solid-like adenolymphomas（PSAL） so as to-elevate the diagnostic level.Methods Fifteen patients with surgically and pathologically proved PSAL underwent ultrasonography of the neck.The location,size,inner-echo,posterior-echo and vascularity of PSAL lesions were retrospectively analyzed in all patients.Results All 15 patients in the group were male with mean age of 57 year-old.All lesions located in superficial lobe of parotid gland.The lesions in inferior pole of superficial lobe were found in 11 cases.The shape of PSALs included 8 oval,3 round and 4 irregular.The margin of PSALs in all cases were well-defined,of whom,13 cases had clear capsules and 2 cases had suspected capsules.PSALs with low-iso heterogeneous echo,hypoecho and moderate echo were found in 8,5 and 2 cases,respectively.PSALs with homogeneous and nonhomogeneous inner echo were found in 7 and 8 cases,respectively.All PSALs appeared as enhancement of posterior echo.Fourteen of 15 patients had CDFI data.Blood flow signal was abundant in 5 cases,moderate in 5 cases and sparse in 4 cases.Conclusion PSAL has characteristic ultrasonic appearances which is helpful to definitely diagnose this disease.