胃间质瘤的CT诊断  

CT diagnosis of gastric stromal tumor

作　　者：张本善 白卓杰[1] ZHANG Ben-shan;BAI Zhuo-jie(Department of Radiation,Affiliated Nanjing Jiangbei Hospital of Nantong University,Nanjing,Jiangsu 210048,China)

机构地区：[1]南通大学附属南京江北医院放射科,江苏南京210048

出　　处：《中国临床研究》2021年第11期1537-1539,1543,共4页Chinese Journal of Clinical Research

摘　　要：目的观察胃间质瘤的CT表现,探讨CT对胃间质瘤的诊断及鉴别诊断的价值。方法回顾性选取南京江北医院2016年1月至2020年11月CT诊断为胃间质瘤的53例患者,经手术病理(免疫组化)证实胃间质瘤49例,误诊为胃间质瘤的其他疾病4例,进行CT征象分析研究。结果49例胃间质瘤肿瘤最大直径为10~73 mm,中低危险度41例,高危险度8例。肿块位于黏膜下型23例,肌壁间型9例,浆膜下型17例,CT增强动脉期肿瘤实性部分有不同程度的强化,良性以均匀轻中度强化为著,恶性以不均匀中高度强化为著,静脉期病灶进一步强化,平衡期及延迟期强化幅度可增加,也可减弱。4例CT误诊病例分别为胃神经鞘瘤2例,异位胰腺1例,纤维肉瘤1例。结论CT检查是胃间质瘤的重要检查方法,特别是CT增强四期扫描对GST的定性诊断及鉴别诊断有重要价值。Objective To observe the CT manifestations of gastric stromal tumors(GST),and explore the value of CT in the diagnosis and differential diagnosis of GST.Methods Fifty-three patients with GST diagnosed by CT in Nanjing Jiangbei Hospital from January 2016 to November 2020 were retrospectively analyzed,49 cases of GST confirmed by surgical pathology(immunohistochemistry),4 cases of other diseases misdiagnosed as GST,CT signs analysis was carried out.Results The maximum diameter of 49 GST was 10-73 mm,41 cases of low-medium risk,and 8 cases of high-risk.There were 23 cases of submucosal type,9 cases of intermural type,and 17 cases of subserosal type.CT-enhanced arterial stage tumors had different degrees of enhancement,the benign GST was characterized by uniform mild to moderate strengthening,the malignancy GST was characterized by uneven,medium and high reinforcement.The venous stage lesions was further strengthened,the strengthening range of the balance period and the delay period could be increased or decreased.The 4 cases of CT misdiagnosis were 2 cases of gastric schwannoma,1 case of ectopic pancreas,and 1 case of fibrosarcoma.Conclusion CT scan is pivotal in confirming GST and enhanced CT is of great clinical value in the differential diagnosis of GST.

关 键 词：胃间质瘤 CT诊断 断层摄影 鉴别 

分 类 号：R735.2[医药卫生—肿瘤]