目的 探讨小肠肿瘤及肿瘤样病 变患者的病理特征及其CT表现。方法 回 顾性分析本院2013年2月-2016年2月经手 术病理证实的60例小肠肿瘤及肿瘤样病变 患者的临床资料，比较观察不同肿瘤、 瘤样病变病理特征及CT表现。结果 病理 检查显示60例患者中恶性肿瘤5例，良性 肿瘤35例，肿瘤样病变20例，均呈现息肉 状且往肠腔内突出特点；胃肠道间质瘤病 灶在黏膜下，梭形肿瘤细胞，排列走向不 一；脂肪瘤也位于黏膜下，黏膜表面溃 疡，肿瘤切面黄色；淋巴组织增生镜下 显示黏膜层存在病灶，细胞分化成熟。 CT对小肠肿瘤、肿瘤样病变检出率均为 90.00%，腺癌CT增强扫描呈现“快速上 升-平台”特点；小肠淋巴瘤CT表现为肠 壁增厚、肠管狭窄、腹膜及肠系膜淋巴结 肿大；胃肠道间质瘤以腔外生长为主，圆 形或椭圆形，病灶与周边正常肠壁边界清 楚。结论 小肠肿瘤以良性肿瘤为主，病 理特征、CT表现在小肠肿瘤及肿瘤样病变 诊断中有重要价值。

Objective To explore pathological features and CT features of patients with small intestinal tumor and tumor-like lesion. Methods A retrospective analysis of clinical data was carried out in 60 cases of small intestinal tumor and tumor-like lesion confirmed by surgery and pathology in our hospital from February 2013 to February 2016, pathological features and CT features of different tumors and tumor-like lesions were compared and observed. Results Pathological examination showed that there were 5 cases of malignant tumor, 35 cases of benign tumor, 20 cases of tumor-like lesion in 60 patients, they had characteristics of polypoid and protrusions toward enteric cavities, there were gastrointestinal tract interstitialoma focus under mucous membrane, fusiformis tumor cells, arrangements and trends were not the same; there were lipoma under mucous membrane, mucosa surface ulcer, cut surface of tumor were yellow; lymphatic tissue proliferative lens showed that focus occured in mucous layer, cell differentiation matured. Relevance ratio of CT in small intestinal tumor and tumor-like lesion were 90.00%, glandular cancer CT enhancement scanning showed the characteristics of rapid upstroke-platform, CT features of enteric lymphoma were bowel wall thickening, bowel stenosis, peritoneum and enlarged mesenteric lymph nodes; gastrointestinal tract interstitialoma mainly were grew outside the cavity, round or oval, the boundary between focus and ambitus normal intestinal wall was clear. Conclusion Most of small intestinal tumors are benign tumor, pathological features and CT features have an important value for diagnosis of small intestinal tumor and tumor-like lesion.