涎腺对称性肿块的MRI诊断特征

MRI Characteristic for Diagnosis of Bilateral Salivary Tumour

目的:通过研究总结双侧涎腺肿块的临床表现及其MRI征像特征,并与病理学检查结果相对照,探讨双侧涎腺肿块的临床鉴别要点,以提高其确诊率。方法:收集双侧涎腺对称性肿块患者21例,回顾性分析其临床资料、MRI征象及病理学诊断,评价临床表现结合MRI检查对诊断的意义,并从中归纳出具有鉴别诊断意义的MRI特征。结果:本组21例双侧涎腺肿块,经病理学诊断,分别为淋巴上皮病变5例,涎腺慢性炎症7例,涎腺良性肥大3例,腺淋巴瘤2例,嗜酸性淋巴肉芽肿2例,恶性淋巴瘤及涎腺脂肪增生各1例;临床表现结合MRI检查得到准确诊断的共16例,总诊断符合率为76.2%,其中对于淋巴上皮病变的诊断符合率为95.2%,对于涎腺慢性炎症的诊断符合率为90.5%。结论:双侧涎腺对称性肿块以淋巴上皮病变或涎腺慢性炎症为多见,在MRI影像学上具有其特征性表现。

Objective： To investigate the MRI characteristic for diagnosis of bilateral salivary tumour. Methods： 21 patients with bilateral salivary tumour were reviewed from clinical material, MRI characters and pathological diagnoses. Results： The final pathological diagnoses of 21 bilateral salivary tumours were as follow： 5 cases were lymphoepithelial lesion, 7 cases were salivary chronic inflammation, 3 cases were salivary hypertrophy, 2 cases were adenolymphoma, 2 cases were eosinophilic granuloma, 1 case was malignant lymphoma and 1 case was salivary fat hyperplasia. The primary diagnoses of 16 cases according to clinical and MRI appearance, matched the final diagnoses with coincident rate of 76.2%. Furthermore coincident diagnosis rates of lymphoepithelial lesion and chronic inflammation were 95.2% and 90.5% respectively. Conclusions： The most common diseases of bilateral salivary tumours are lymphoepithelial lesion and chronic inflammation, which have characteristic MRI appearances. MRI may have great value for diagnosing of bilateral salivary tumours.