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目的 讨论小肠原发性恶性肿瘤的临床表现、诊断、治疗和预后。方法 回顾性病例分析。结果 小肠原发性恶性肿瘤有下列临床表现：１ 、大多数病人（７８ ．２ ％ ） 的年龄在５４ 岁以上。２ 、最常见部位在回肠。３ 、腹痛、消瘦和贫血为主要症状。４ 、术前病程较长。５ 、５ 年生存率为３３ ．３３ ％ 。结论 原发性小肠恶性肿瘤很少见，因症状无特异性易延误诊断。对于不明原因的腹痛、消瘦和贫血要想到小肠恶性肿瘤的可能。低张小肠钡剂造影、 Ｃ Ｔ 和选择性动脉造影有一定的诊断价值。尽可能选择根治性切除术。早期诊断，切除彻底可提高５ 年生存率。
Objective To discuss the clinical manifestations, diagnosis, treatment and prognosis of primary malignant tumors of the small intestine. Methods Retrospective case analysis. Results The primary malignant tumors of the small intestine had the following clinical manifestations: 1. The majority of patients (78.2%) were over 54 years of age. 2. The most common site is in the ileum. 3, abdominal pain, weight loss and anemia as the main symptoms. 4, preoperative long course. The 5-year 5-year survival rate was 33. 33%. Conclusions Primary malignant tumors of the small intestine are rarely seen because of the non-specific symptoms and delay in diagnosis. For unexplained abdominal pain, weight loss, and anemia, the possibility of a malignant tumor of the small intestine is thought. Low-intestinal barium angiography, CT and selective angiography have certain diagnostic value. Try radical resection as much as possible. Early diagnosis, resection can completely improve the 5-year survival rate.