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[目的]探讨黏液表皮样癌的超声表现与病理学分析。[方法 ]回顾性分析31例涎腺黏液表皮样癌的超声表现,并结合病理分级分析不同恶性程度肿瘤的超声特征。[结果]边界清晰19例(61.3%),形态不规则22例(71.0%),回声不均匀25例(80.6%),瘤体以低回声为主24例(77.4%),肿瘤内含无回声区20例(64.5%),肿瘤内伴钙化斑或钙化点3例(9.7%),血流信号1~2级20例(64.5%),3~4级11例(35.5%)。侵犯周围软组织或面神经8例(25.8%),根据病理恶性程度分为三级:低分化、中分化和高分化,高分化肿瘤主要表现边界清,形态不规则,血流信号1~2级;低分化肿瘤边界不清,血流信号3~4级;中分化肿瘤介于两者之间。[结论]涎腺黏液表皮样癌具有恶性肿瘤的超声表现,也具有其特殊的超声特征。
[Objective] To investigate the ultrastructural and pathological analysis of mucoepidermoid carcinoma. [Methods] The ultrasonic findings of 31 cases of mucoepidermoid carcinoma of salivary gland were retrospectively analyzed. The ultrasonic features of different malignant tumors were analyzed with pathological grading. [Results] The borderline was clear in 19 cases (61.3%), irregular shape in 22 cases (71.0%), echogenic uneven in 25 cases (80.6%), low echo in 24 cases (77.4% Echogenicity was found in 20 cases (64.5%), 3 cases (9.7%) with calcification or calcification in the tumor, 20 cases (64.5%) with grade 1 ~ 2 and 11 cases (35.5%) with grade 3-4. 8 cases (25.8%) infiltrated surrounding soft tissue or facial nerve were divided into three grades according to the degree of pathological malignancy: poorly differentiated, moderately differentiated and well differentiated. The well-differentiated tumors of the well-differentiated tumors had clear border, irregular shape and blood flow signals of 1 to 2 levels. Poorly differentiated tumor border is unclear, blood flow signals 3 to 4; moderately differentiated tumors between the two. [Conclusion] The mucoepidermoid carcinoma of salivary gland has the ultrasonographic features of malignant tumors and also has its special ultrasonic features.