Conclusion: The preoperative diagnosis rate of secondary malignant tumors is higher than that of primary malignant tumors.
结论：继发性恶性肿瘤术前诊断率高于原发性恶性肿瘤。
Objective: to discuss the clinical pathology characteristic and pathogenesis of Xanthogranulomatous Pyelonephritis (XGP). So that the preoperative diagnosis rate could be improved.
目的：探讨黄色肉芽肿性肾盂肾炎(xgp)的临床病理特征、发病机制，以提高术前诊断。
Preoperative diagnosis was usually established on B-ultrasonography, the detection rate of which has been 88.2%.
超检查是胆囊小隆起性病变术前诊断的首选方法，本组检出率为88.2％。
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