消化道颗粒细胞瘤的影像学表现  

Imaging features of granular cell tumor in the alimentary system

作　　者：王玉红[1] 张丽红[2] 王林省[1] 陈月芹[1] 王彦辉[1] 王皆欢[1] 李传福[3] 

机构地区：[1]济宁医学院附属医院影像中心,山东济宁272000 [2]济宁市第一人民医院影像中心,山东济宁272011 [3]山东大学齐鲁医院放射科,山东济南250012

出　　处：《山东大学学报（医学版）》2017年第8期66-70,共5页Journal of Shandong University:Health Sciences

摘　　要：目的探讨消化道颗粒细胞瘤的影像学表现特征,提高对该肿瘤的认识,减少误诊率。方法回顾性分析10例经病理证实的消化道颗粒细胞瘤的影像学(钡餐检查5例,CT平扫9例,CT增强扫描7例,M RI平扫及增强扫描5例)表现。结果 10例消化道颗粒细胞瘤均为单发,其中位于食管4例、胃3例,十二指肠壶腹、回盲部及直肠各1例。5例钡餐检查均表现为光滑充盈缺损。9例CT平扫表现为边缘清楚的略低密度影,其中1例瘤内见点状钙化,1例瘤内见局灶性坏死;7例增强扫描中6例呈轻度均匀强化,1例呈中度不均匀强化,三期扫描均为渐进性强化。5例MRI平扫均呈长T1短T2信号,增强扫描呈轻中度渐进性均匀强化。结论消化道颗粒细胞瘤的钡餐表现为良性肿瘤特征,CT和MRI上多为均匀轻中度渐进性强化、T2WI呈低信号具有一定特征。Objective To explore the imaging features of granular cell tumor in the alimentary system,in order to improve the understanding of this disease and reduce the rate of misdiagnosis. Methods The imaging findings of 10 cases of granular cell tumors in the alimentary system were retrospectively analyzed. Of the 10 cases,5 underwent barium meal test,9 underwent plain CT scan,7 underwent enhanced CT scan,and 5 underwent plain and enhanced MRI.Results All of the 10 tumors were singular,including 4 in the esophagus,3 in the stomach,1 in duodenum,1 in ileocecum and 1 in rectum. Barium meal images showed well-defined filling defect in 5 cases. Plain CT scan showed slightly low density in 9 cases,including 1 case with calcification,and 1 with focal necrosis. Of 7 cases underwent enhanced CT scan showed 6 masses were mild homogeneous intensification,and 1 moderate homogeneous intensification; all masses were gradually intensified on multiple-phase scan. Plain MRI showed long T1 and short T2 signals in 5 cases;enhanced MRI showed mild to moderate intensification. Conclusion The granular cell tumors in the alimentary system have certain imaging features： benign traits on barium meal,mild or moderate gradual intensification on CT and MRI,and T2 WI signal on plain MRI.

关 键 词：颗粒细胞瘤 消化道 磁共振成像 体层摄影术 X线计算机 

分 类 号：R735.1[医药卫生—肿瘤] R814.4[医药卫生—临床医学]