胃神经鞘瘤的CT表现  

CT features of gastric schwannoma

作　　者：段倩倩 李海宁 张秋丽[1] 郭乔 高小燕 王柯[1] 温鑫 刘红娟[1] Duan Qianqian;Li Haining;Zhang Qiuli;Guo Qiao;Gao Xiaoyan;Wang Ke;Wen Xin;Liu Hongjuan(The First Affiliated Hospital of Xi'an Jiaotong University,Shaanxi Xi'an 710061,China)

机构地区：[1]西安交通大学第一附属医院,陕西西安710061

出　　处：《现代肿瘤医学》2020年第15期2702-2705,共4页Journal of Modern Oncology

摘　　要：目的:探讨胃神经鞘瘤(GS)的CT特征,旨在提高对该肿瘤的CT诊断水平。方法:回顾性分析8例经手术病理证实的胃神经鞘瘤患者的临床影像资料,评估病灶部位、大小、形态、生长方式、密度及强化特点等。行腹部CT平扫及增强扫描者3例,仅行CT平扫者2例,仅行增强扫描者3例。结果:本组8例均为女性,年龄41~80岁不等,平均(56±12)岁,均为单发性胃神经鞘瘤,位于胃体、胃底者分别为3例、5例。肿瘤边界清晰,向腔内外双向生长者5例,腔内生长者2例,腔外生长者1例;病灶多呈类圆形或卵圆形,仅1例呈不规则浅分叶状;病灶大小不等,最大直径1.4~9.1 cm,平均值(4.94±2.32)cm;CT平扫病灶多表现为均匀等低密度,其中2例可见颗粒状钙化灶,增强扫描多呈渐进性均匀强化,仅1例呈渐进性不均匀强化。结论:胃神经鞘瘤CT平扫常表现为胃黏膜下的类圆形或卵圆形低密度肿块,增强扫描呈渐近性强化,这些特征有助于该病的术前准确诊断。Objective:To analyze CT features of gastric schwannoma,in order to improve the imaging diagnosis of this tumor.Methods:Clinical and image data of 8 cases with gastric schwannoma confirmed by surgery and pathology was retrospectively analyzed,evaluating the lesions's location,size,morphology,growth pattern,density and enhancement feature.3 cases underwent both abdominal plain CT and enhanced CT scanning,2 cases only underwent plain CT scanning,other 3 cases only enhanced CT scanning.Results:All the 8 patients in this group were female,ranging from 41 to 80 years old,with an average age of 56 years old.All of them were concluded with single mass,and 3 cases were located in gastric body and 5 cases in gastric fundus.7 cases presented a round-like or ovoid shape,while 1 case presented an irregularly lobulated shape.The margin of mass was clear.The size was different.The maximal diameter was 1.4~9.1 cm and the mean value was 4.94 cm.CT plain scan showed homogeneously iso or hypo density,and mottled calcification was observed in 2 cases.5 cases showed progressive uniform enhancement,while 1 was progressive heterogeneous enhancement.The growth pattern showed that there were 5 tumors of bilateral growth,2 cases of intra-cavitary growth,1 case of out-cavitary growth.Conclusion:The CT findings of gastric schwannoma had certain characteristics,usually showed gastric submucosal low-density mass in round or ovoid.Enhanced scan showed asymptotic enhancement.CT examination is helpful to the preoperative diagnosis of the disease.

关 键 词：胃神经鞘瘤 计算机体层成像 诊断 

分 类 号：R730.264[医药卫生—肿瘤]