腮腺基底细胞腺瘤CT和MRI特点

目的 探讨腮腺基底细胞腺瘤的临床特点及CT、MRI影像特征.资料与方法 回顾性分析经手术病理证实的37例腮腺基底细胞腺瘤的CT、MRI影像特点,37例术前均行CT和MR平扫+增强扫描,对患者性别、发病年龄、临床表现、发病部位,以及肿块大小、数目、CT密度、MRI信号强度及强化方式等进行分析.结果 中老年女性多见,多表现为腮腺无痛性肿块.37例病变均位于腮腺浅叶.CT和MRI平扫示肿瘤呈类圆形,无分叶,边缘光滑肿瘤.病变较小,直径为7～30mm；密度、信号欠均匀,21例(56.8％)发生囊变.CT和MRI增强扫描示37例有较显著强化.结论 腮腺基底细胞腺瘤具有体积小、易囊变、强化显著等影像学特征,结合临床特点对于肿瘤的定性诊断有很大帮助.

Basal Cell Adenomas of the Parotid Gland:CT and MRI Features

Purpose To explore the CT,MR imaging and clinical features of basal cell adenoma of the parotid gland.Materials and Methods CT and MR imaging were performed in 37 patients with basal cell adenoma confirmed by pathology.The gender,age,clinical manifestation,localization,size,number,CT value,MR signal intensity and enhance pattern were observed in the parotid gland.Results Old women showed most basal cell adenoma of the parotid gland with manifestation of painless mass in parotid gland.The basal cell adenoma of the parotid gland was frequently observed in the superficial lobe of the parotid gland.37 lesions were commonly demonstrated that showed the round-like shape with clear margin and evident enhancement on CT and MR images.The diameters of the lesions ranged from 7-30 mm.The lesions were heterogeneous.21 patients(56.8%) suffered from cystic changes.Conclusion The basal cell adenoma of the parotid gland has certain clinical and imaging features,such as small in size,cystic changes,strong enhancement,which are helpful to the qualitative diagnosis of basal cell adenoma.