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目的:探讨颌下腺恶性肿瘤的核磁共振成像(MRI)特征,以期提高诊断水平。方法:回顾性分析7例经病理证实的颌下腺恶性肿瘤的MRI表现。结果:病灶均为单发。病灶最大径1.4~5.0 cm,平均为3.2 cm。本组7例病例6例MRI表现为T1WI等低信号,T2WI高信号,1例T1WI中等稍高信号,T2WI稍高信号。增强扫描均明显强化,5例信号均匀,2例信号不均匀。3例伴有淋巴结肿大。结论:颌下腺恶性肿瘤的MRI表现有一定的特征,MRI对颌下腺恶性肿瘤的诊断具有较高的价值。
Objective: To investigate the magnetic resonance imaging (MRI) features of submandibular gland malignant tumors in order to improve the diagnostic level. Methods: MRI findings of 7 cases of pathologically confirmed submandibular gland malignancies were retrospectively analyzed. Results: The lesions were single. The maximum diameter of lesions 1.4 ~ 5.0 cm, with an average of 3.2 cm. 6 cases of this group of 6 cases of MRI showed low signal T1WI, T2WI high signal, 1 case of T1WI moderately high signal, T2WI slightly higher signal. Enhanced scanning were significantly enhanced, 5 cases of uniform signal, 2 cases of uneven signal. 3 cases with enlarged lymph nodes. Conclusion: MRI features of submandibular gland malignant tumors have certain characteristics. MRI is of great value in the diagnosis of submandibular gland malignant tumors.