胃息肉的CT特征  

CT imaging features of gastric polyp

作　　者：舒月红[1] 

机构地区：[1]浙江省衢州市人民医院放射科,浙江衢州324000

出　　处：《医学影像学杂志》2017年第12期2338-2341,共4页Journal of Medical Imaging

摘　　要：目的探讨胃息肉的CT表现特征。方法回顾性分析21例(26枚)经病理证实的胃息肉CT表现。结果16例肿瘤单发,5例多发,胃窦部14枚,胃体部9枚,胃底部3枚,有蒂12枚,无蒂14枚,肿瘤大小8.6~27.0mm,呈圆形、类圆形或不规则形,边界清晰,均为腔内生长,CT平扫肿瘤呈均匀性等密度,动脉期明显强化,静脉期均进一步强化,病理证实均为良性胃息肉。结论胃息肉常见于胃窦、胃体部,体积偏小,有蒂息肉均发生在胃窦部。所有GP呈圆形、类圆形或不规则形,边缘清晰,增强后动脉期肿瘤中度强化,静脉期进一步强化。Objective To discuss the CT features of gastric polyp（ GP）. Methods CT findings of twenty-one patients with gastroscopy or surgery and pathology proven GP were retrospectively analyed and CT manifestations were correlated with pathology.Results Of the twenty-one patients with GP confirmed begin GP by pathology,16 cases were solitary lesion,and 5 cases were multiple lesions. The tumors were located in the gastric antrum（ 14/26）,gastric body（ 9/26） and gastric fundus（ 3/26） ranging from 8. 6 mm to 47. 0 mm. Polyps were also divided into sessile（ 14/26） and pedunculated（ 12/26） polyps. The tumors showed round,round-like,or irregular in shape,well-defined and intracavity growth patterns. The lesions manifested as homogeneous isodensity on non-enhanced CT images. All tumors showed moderate enhancement on the arterial phase and strengthened progressive enhancement during the venous phase. Conclusion The majority of GP locate in the antrum,body or fundus with small size,and mainly discovered polyps are mainly located at gastric antrum. All tumors display moderate enhancement on the arterial phase and increas their density during the venous phase.

关 键 词：息肉 胃肿瘤 体层摄影术 X线计算机 

分 类 号：R739.2[医药卫生—肿瘤] R814.42[医药卫生—临床医学]