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目的研究肾恶性肿瘤肾外动脉供血的形成机制,以指导介入治疗。方法对141例肾恶性肿瘤患者,常规进行腹主动脉造影及选择性可疑供血动脉造影,分析其肾外供血动脉的特征及形成机制。结果 141例患者中51例有肾外供血动脉(共87支),这些患者肿瘤均突破肾包膜;90例无肾外供血动脉,其中50例肿瘤突破肾包膜,40例肿瘤未突破肾包膜,两者差异有统计学意义(χ~2=31.64,P<0.01)。肾外供血动脉的来源与肿瘤发生的部位有关。结论明确肾恶性肿瘤肾外供血动脉的来源,对于指导临床治疗具有重要的意义。
Objective To study the mechanism of extrarenal artery blood supply in renal malignancies to guide the interventional therapy. Methods A total of 141 patients with malignant neoplasms of renal cell carcinoma underwent routine abdominal aortography and selective suspicious feeding arterial angiography. The characteristics and mechanism of their extrarenal feeding arteries were analyzed. Results Of the 141 patients, 51 cases had an extrarenal artery (a total of 87). All of these patients had tumors that broke through the renal capsule. Ninety patients had no external renal artery, of which 50 had a nephrotic capsule and 40 did not break the kidney There was a significant difference between the two groups (χ ~ 2 = 31.64, P <0.01). The source of the extrarenal artery is related to the site of the tumor. Conclusion The clear source of extrarenal supply artery for renal malignant tumor is of great significance for guiding the clinical treatment.