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目的高频超声检查鉴别腮腺多形性腺瘤和腺淋巴瘤,为患者制定治疗方案提供诊断依据。方法回顾分析176例患者经病理证实的184个腮腺良性肿瘤(多形性腺瘤120个,腺淋巴瘤64个)的超声图像,分析、总结两种肿瘤的灰阶超声特征及彩色多普勒血流成像特点。结果多形性腺瘤中男性占47.4%(55/116),腺淋巴瘤中男性占96.7%(58/60),两者比较,差异有统计学意义(P<0.01)。边缘呈分叶者多形性腺瘤59个(49.2%),腺淋巴瘤21个(32.8%);内部回声均匀者多形性腺瘤57个(47.5%),腺淋巴瘤9个(14.1%);伴液化者多形性腺瘤33个(27.5%),腺淋巴瘤39个(60.9%);伴钙化者多形性腺瘤14个(11.7%),腺淋巴瘤无;血流丰富者多形性腺瘤19个(15.8%),腺淋巴瘤35个(54.7%),中心血流者多形性腺瘤43个(35.8%),腺淋巴瘤45个(70.3%)。二者边缘分叶的比率、内部液化的比率、钙化的出现率、Ⅲ级血流的比率及血流分布的比率差异有统计学意义(P<0.05)。结论腮腺低回声团块呈分叶状结构,内部回声较均匀,伴钙化,血流不丰富多提示多形性腺瘤,而低回声团块伴液化,较丰富的中心血流则首先考虑腺淋巴瘤可能性大。
Objective To identify parotid pleomorphic adenoma and adenolymphoma by high-frequency ultrasonography and provide the basis for diagnosis and treatment of patients. Methods The ultrasound images of 184 parotid benign tumors (120 pleomorphic adenoma and 64 adenolymphoma) confirmed by pathology were retrospectively analyzed. The characteristics of gray scale ultrasound and color Doppler echocardiography Flow imaging features. Results Male patients accounted for 47.4% (55/116) of pleomorphic adenomas and 96.7% (58/60) of male patients with adenolymphoma. The difference was statistically significant (P <0.01). Fifty-nine pleuromorphic adenomas (49.2%) were marginated and 21 (32.8%) were adenolymphomas. Fifty-seven pleomorphic adenomas (47.5%) were internal echo and 9 (14.1%) were adenolymphoma ; 33 (27.5%) patients with liquefied pleomorphic adenoma, 39 (60.9%) adenolymphoma; 14 (11.7%) pleomorphic adenoma with calcification, adenoid lymphoma without; 19 (15.8%) were adenomas, 35 (54.7%) were adenolymphomas, 43 (35.8%) were pleural adenocarcinomas, and 45 (70.3%) were adenolymphomas. There were significant differences in the ratio of marginal lobe, internal liquefaction, calcification, grade III blood flow and blood flow distribution (P <0.05). Conclusions The hypoechoic mass in the parotid gland is lobulated. The internal echoes are more homogeneous with calcification. The plethora of pleomorphic adenomas are not abundant. The hypoechoic mass with liquefaction and the richer central blood flow are the first to consider the adenolymph Tumor is likely.