近年来有关多原发恶性肿瘤的报道逐渐增多,本文报道胃B细胞淋巴瘤并直乙交界腺癌1例,这在国内外文献中未见相关报道.内镜活检和免疫组织化学法对于正确诊断是必要的.对于多原发性恶性肿瘤的治疗,提倡手术根治,可提高患者生存率.%In recent years, reports of multiple primary malignant neoplasms have gradually increased. One case was reported in this article, which was a gastric B cell lymphoma coexisting with rectosigmoid borderline adenocarcinoma and had not been reported in literature. En-doscopic biopsy and immunohistochemical method are necessary for diagnosis and radical surgery could improve the survival.
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