十二指肠神经内分泌肿瘤和间质瘤的多排CT表现及对照研究

发布时间：2018-02-28 13:40

本文关键词： 十二指肠肿瘤神经内分泌肿瘤间质瘤体层摄影术螺旋计算机　出处：《临床放射学杂志》2017年03期 　论文类型：期刊论文

【摘要】：目的探讨十二指肠神经内分泌肿瘤(DNET)的CT表现,并与十二指肠间质瘤(DST)进行对照分析,以提高诊断正确率。方法选取经手术病理证实的DNET 9例及DST 14例,回顾性分析患者临床特征及病变CT表现,并对两者的CT表现进行比较。CT影像资料由两名具有丰富经验的高年资放射科医师评估,评估内容包括肿瘤大小、形态、生长方式、增强模式、强化程度、肿瘤内部钙化、坏死囊变以及坏死所占体积比。统计学分析采用单因素方差分析、卡方检验以及Fisher精确概率法。结果DNET的最大径(2.18±0.75)cm小于DST(3.84±1.70)cm(P=0.012);DNET男性患者多见(6/9),而DST女性患者多见(8/14);DNET(6/9)和DST(9/14)肿块形态呈圆形或卵圆形;DNET(8/9)和DST(11/14)肿块多发生在十二指肠降部,DNET(4/9)和DST(9/14)腔外生长多见;DNET肿瘤内部多均匀强化(8/9),DST肿瘤内部均匀强化少见(5/14)(P=0.029);强化程度DNET(6/9)、DST(11/14)二者多呈明显强化;DNET肿瘤内部坏死囊变较少(1/9),DST坏死囊变较多(8/14)(P=0.029),二者坏死部分所占肿块体积比存在差异(P0.019)。结论DNET多发生于十二指肠降部,CT上多表现为较小的圆形、卵圆形肿块,增强后多呈明显均匀强化,肿瘤内部坏死囊变、钙化现象少见。与DST影像学表现在肿块大小、增强模式、肿瘤内部有无坏死囊变以及坏死体积比等方面存在差异。
[Abstract]:Objective to investigate the CT findings of duodenal neuroendocrine tumors (DNET) and to compare them with duodenal stromal tumors (DST) in order to improve the diagnostic accuracy. Methods 9 cases of DNET and 14 cases of DST proved by operation and pathology were selected. The clinical features and CT findings of the patients were analyzed retrospectively, and the CT findings were compared. The CT images were evaluated by two highly experienced radiologists, including tumor size, shape and growth pattern. Enhancement pattern, degree of enhancement, internal calcification of tumor, necrotic cystic change and the ratio of necrosis to volume of necrosis. Chi-square test and Fisher accurate probability method. Results the maximum diameter of DNET was 2.18 卤0.75 cm less than DST(3.84 卤1.70 cm / cm ~ (-1. 70) / 0.12 / 9 / 9 in male patients, while in female patients with DST 8 / 14 / 14 DNET / 6 / 9 and DST / 9 / 14) masses were round or oval DNET / 8 / 9) and DSTT / 11 / 14) tumors occurred in the descending duodenum of DNET4 / 9 / 9) and DSTT / DNET4 / 9 / 9 / 9 / 9 / 14, respectively. (DST9 / 14) Extraluminal growth was more common in DNET tumors than in DNET tumors with 8 / 9% homogeneous enhancement. 5 / 14% DST internal homogeneous enhancement was rare; enhancement degree was DNET6 / 9 / 9% DST11 / 14) both showed obvious enhancement of DNET tumor internal necrotic cysts with fewer 1 / 9% DST necrotic cysts, and the necrotic cysts of DNET and DST were more than 814% P / P 0.029%, and some of the necrotic lesions were accounted for in part of the swelling. There is a difference in mass volume ratio (P0.019). Conclusion DNET is more often seen in the descending duodenum on CT scans with smaller circles. In oval masses, most of them showed homogeneous enhancement after enhancement, necrotic cystic change and calcification were rare. There were differences with DST in tumor size, enhancement pattern, necrotic cystic degeneration and necrosis volume ratio.
【作者单位】：南京医科大学第一附属医院放射科;
【分类号】：R735.31;R730.44

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