腮腺基底细胞腺瘤的双期增强CT特点

发布时间：2018-03-01 00:35

本文关键词： 基底细胞腺瘤 CT表现 CT强化模式　出处：《中国CT和MRI杂志》2016年04期 　论文类型：期刊论文

【摘要】：目的探讨腮腺基底细胞腺瘤的CT表现特点及CT值量化指标,以提高对该病的影像诊断水平。方法回顾性分析经病理证实的22例腮腺基底细胞腺瘤的双期增强CT的表现,对肿瘤部位、数目、大小、形态、CT密度、强化模式及CT值量化指标等进行分析。结果 22例腮腺基底细胞腺瘤病例均为单侧单发,16例位于腮腺浅叶,2例跨浅、深叶,4例位于腮腺深叶;肿瘤最大截面横径为0.5-5.5cm;大多呈椭圆形、类圆形软组织肿块,边界清楚,17例(17/22)肿块内见囊变区,其中1例(1/17)见钙化灶。所有病例在双期CT增强均有强化,动脉早期强化较明显、CT值为(104.7±15.3)Hu,最大强化率为152.3%,动脉晚期(近动静脉交界期)CT值为(118.7±13.8)Hu;基底细胞腺瘤至少有两种强化模式:一是动脉早期明显强化,动脉晚期持续强化;二是动脉早期显著强化,动脉晚期强化幅度有所减退,同时与其相关病理进行比较分析,具有一定的特点。结论腮腺基底细胞腺瘤有一定特征性的CT表现,结合病史、临床表现,有助于正确诊断。
[Abstract]:Objective to investigate the CT features and quantitative CT value of basal cell adenoma of parotid gland in order to improve the diagnostic level of the disease. Methods Twenty two phase enhanced CT findings of 22 cases with pathologically proved basal cell adenoma of parotid gland were analyzed retrospectively. The location, number, size, morphology, CT density, enhancement pattern and quantitative index of CT value of the tumor were analyzed. Results all 22 cases of basal cell adenoma of parotid gland were unilateral and 16 cases were located in the superficial lobe of parotid gland in 2 cases. The tumor was located in the deep parotid lobe in 4 cases; the maximum cross-sectional diameter of the tumor was 0.5-5.5 cm; most of the tumors were oval, round soft tissue masses, 17 / 22 with clear boundary. The cystic area was found in 17 / 22 of the masses, in which 1 / 17 (1 / 17) of the tumors were calcified. All the cases were enhanced on biphasic CT enhancement. The CT value of early arterial enhancement was 104.7 卤15.3, the maximum enhancement rate was 152.3, and the CT value was 118.7 卤13.8 Hu.There were at least two kinds of enhancement patterns in basilar cell adenoma: one was obvious enhancement in early stage of artery, and the other was continuous enhancement in late stage of artery. Second, the early stage of arterial enhancement was significantly enhanced, and the extent of late enhancement of the artery was decreased, and compared with its pathology, it had certain characteristics. Conclusion the basal cell adenoma of the parotid gland has some characteristic CT findings, combined with the history of the disease. Clinical manifestation is helpful to correct diagnosis.
【作者单位】：上海交通大学医学院附属第三人民医院医学影像科;上海交通大学医学院附属第三人民医院病理科;
【基金】：上海市宝山区科学技术委员会科学技术基金(标号:14-E-4)
【分类号】：R739.8;R730.44

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