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目的：探讨影像学检查及胃镜、超声内镜对原发性胃淋巴瘤的术前诊断方法，以提高该疾病的术前诊断率。方法：总结我院经手术及病理证实的21 例原发性胃淋巴瘤资料，评估胃镜活检、超声内镜及CT 对该病诊断的作用。结果：21 例术前CT 检查，误诊为浸润型胃癌11 例，间质瘤2 例，未见明显异常3 例。CT 术前诊断率为23.8％(5/21)。全部患者均实施胃镜检查，活检病理诊断淋巴瘤14 例，胃镜活检诊断率为66.7％(14/21)。其中10 名患者实施超声胃镜检查，判断胃淋巴瘤6 例、胃癌3 例、间质瘤1 例; 术前诊断率为60.0％(6/10)。结论：胃镜及超声内镜是原发性胃淋巴瘤的主要术前诊断方式；CT 扫描能明确有无纵隔及腹腔内淋巴结肿大，为原发性胃淋巴瘤提供诊断依据。

英文摘要:

Objective: To improve the diagnosis level of primary gastric lymphoma by analyzing the value of imaging, endoscopy and endoscopic ultrasonography. Methods：The value of clinical examinations in diagnosis were retrospectively analyzred of 21 patients with pathologically confirmed primary gastric lymphoma. Results：Of the total 21 patients, Misdiagnosed as invasive cancer in 11 cases, stromal tumor in 2 cases, no obvious abnormalities in 3 cases. Only 5 (23.8%)patients were diagnosed exactly by Computed tomography. These cases were examined by endoscopy, Biopsy diagnosis of lymphoma in 14 cases, endoscopic biopsy diagnosis rate was 66.7%(14/21). Ten of these cases were examined by endoscopic ultrasonography, judgment of 6 cases of gastric lymphoma, 3 cases of gastric cancer, 1 cases of stromal tumors; preoperative diagnostic rate was 60% (6/10). Conclusions：Endoscopy and endoscopic ultrasonography in primary gastric lymphoma is the main way of preoperative diagnosis; CT scan can clearly has no mediastinal and abdominal lymph nodes, for primary gastric lymphoma provide diagnostic evidence.

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