目的 对比分析原发性胃淋巴瘤 CT和MR影像学表表现，为临床诊断提供参 考。方法 回顾性分析我院收治原发性胃 淋巴瘤患者临床资料，整理CT和MR影像学 表现。结果 CT和MRI诊断均能够清晰显示 原发性胃淋巴瘤病变范围、部位以及周围 淋巴结情况，3例近累及胃体，7例累及胃 体和胃窦，6例累及胃底，3例同时累及胃 体、胃底和胃窦，3例累及贲门和胃底， 所有患者均出现胃壁增厚情况，CT诊断3 例患者浆膜面模糊，MRI诊断6例患者浆膜 面模糊。CT扫描20例患者均匀轻度强化， 2例患者重度不均匀强化，MRI诊断11例患 者增强，其中9例均匀轻度强化，2例中度 不均匀强化，所有患者DWI信号出现高信 号，突出显示肿瘤及转移淋巴结高信号， 对比明显。结论 原发性胃淋巴瘤CT和MR 影像学表现存在一定特点，联合使用对诊 断有更高的价值。

Objective To analyze the image contrast of CT and MR in Primary gastric lymphoma. Methods A retrospective analysis of our hospital clinical data of patients with primary gastric lymphoma, CT and MR imaging findings was organized. Results Extent of disease in primary gastric lymphoma, location and the surrounding lymph nodes were clearly showed with CT and MRI. Three cases were involved the stomach near the body, 7 cases were involved the gastric body and antrum, 6 cases were involved the gastric fundus, 3 cases were involved the gastric body and gastric antrum, 3 cases were involved the cardia and fundus.Patients were appeared gastric wall thickening situation, three patients were serosa fuzzy by CT diagnosis, 6 patients serosa were blurred by MRI diagnosis.20 patients were CT scansed with with mild homogeneous enhancement,2 patients were severed with heterogeneous enhancement,11 patients were MRI diagnosised enhancements, including 9 cases even slightly enhanced, 3 cases moderate heterogeneous enhancement.DWI signal appears were highlighted signal of all patients, highlight the tumor and lymph node metastasis sorghum signal. Conclusion Primary gastric lymphoma CT and MR imaging findings certain characteristics, in combination with the diagnosis of a higher value.