CT双期增强扫描在腮腺肿瘤性病变诊断中的价值  

The value of CT dual-phase enhancement in diagnosis of parotid neoplastic lesions

作　　者：石惠[1] 李辉[1] 牛媛媛 张瑞荣[1] 马思[1] 平学军[1] SHI Hui;LI Hui;NIU Yuanyuan;ZHANG Ruirong;MA Si;PING Xuejun(Department of Radiology,General Hospital of Ningxia Medical University,Yinchuan 750004,China)

机构地区：[1]宁夏医科大学总医院放射科,宁夏银川750004

出　　处：《实用放射学杂志》2022年第7期1074-1077,共4页Journal of Practical Radiology

摘　　要：目的探讨CT双期增强扫描在腮腺肿瘤性病变诊断及鉴别诊断中的价值。方法收集293例行腮腺双期增强扫描患者的影像资料,并且均在2周内经手术或穿刺活检病理证实。回顾性分析各种肿瘤性病变的临床及影像特点,包括性别、年龄、病变位置、大小、形态、密度、边界、邻近结构关系及其CT征象。结果293例患者304个腮腺肿瘤性病变中,良性肿瘤240个,以多形性腺瘤、腺淋巴瘤及基底细胞瘤多见;恶性肿瘤64个,以黏液表皮样癌及腺样囊性癌多见。平扫时腺淋巴瘤与黏液表皮样癌CT值高于多形性腺瘤及基底细胞瘤;动脉期基底细胞瘤强化最明显,腺淋巴瘤次之,多形性腺瘤最弱;静脉期腺淋巴瘤强化减退,多形性腺瘤、基底细胞瘤及黏液表皮样癌均呈持续强化。结论CT双期增强扫描对腮腺肿瘤性病变的诊断及鉴别诊断具有重要价值,根据CT显示肿瘤的范围、大小、部位、毗邻关系、密度及强化特征,并结合相关临床病史如年龄、性别、部位及有无吸烟史等,能对腮腺肿瘤的术前病理类型做出较准确的诊断,从而为临床制订治疗策略提供有价值的信息。Objeetive To explore the value of dual-phase enhanced CT scan in the diagnosis and diferential diagnosis of parotid neoplastic lesions.Methods The imaging data of 293 patients who underwent dual-phase enhanced parotid gland scanning were collected,and all of them were confirmed by surgery or biopsy pathology within 2 weeks.The clinical and imaging characteristics of various neoplastic lesions were retrospectively analyzed,including gender,age,lesion location,size,morphology,density,boundary,adjacent structure,and CT signs.ResultsAmong the 304 parotid neoplastic lesions in 293 patients,240 lesions were benign tumors,most of which were pleomorphic adenoma,Warthin's tumor and basal cell tumor.There were 64 malignant tumors,most of which were mucoepidermoid carcinoma and adenoid cystic carcinoma.The CT values of Warthin's tumor and mucoepidermoid carcinoma were higher than those of pleomorphic adenoma and basal cell tumor.The enhancement of arterial basal cell tumor was the most obvious,followed by Warthin's tumor,and that of the pleomorphic adenoma was the weakest.Venous Warthin's tumor decreased in enhancement,however,pleomorphic adenoma,basal cell tumor and mucoepidermoid carcinoma all showed continuous enhancement.Conclusion Dual-phase contrast-enhanced CT scanning has important value in the diagnosis and differential diagnosis of parotid neoplastic lesions.The CT images shows the scope,size,site of the tumor,the adjacent relationship,the density,and the characteristics of enhancement,combined with the relevant clinical history,such as age,gender,site and smoking history,the preoperative pathological type of parotid tumor can be accurately diagnosed,so as to provide valuable information for clinical treatment strategies.

关 键 词：腮腺肿瘤性病变 双期增强 计算机体层成像 

分 类 号：R739.91[医药卫生—肿瘤] R814[医药卫生—临床医学]