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目的:探讨内生性、中央型微小肾癌的定义、诊断和治疗,提高其诊治效果。方法:回顾性分析3例内生性、中央型微小肾癌患者的临床资料,根据B超、CT、MRI检查确立内生性、中央型微小肾癌(<2.0 cm)诊断。采用保留肾单位的肾肿瘤切除术,术中在B超引导下行肾部分切除术,结合文献资料进行讨论。结果:3例患者肾肿瘤均<2.0 cm,不突出肾表面,术中肾脏外观正常,在B超引导下进行肾肿瘤切除,保留了肾功能。术后患者生化、B超、CT随访6个月～5年,肾功能良好,无肿瘤复发。结论:内生性、中央型微小肾癌诊断主要依靠CT和MRI,首选治疗方法为保留肾单位的肾肿瘤切除术,其预后较好。
Objective: To explore the definition, diagnosis and treatment of endogenous and central small renal cell carcinoma and to improve its diagnosis and treatment. Methods: The clinical data of 3 patients with endogenous and minimally invasive renal cell carcinoma were retrospectively analyzed. The diagnosis of endogenous and central small renal cell carcinoma (<2.0 cm) was established by B-mode ultrasound, CT and MRI. Kidney nephrectomy with retained nephron was performed. Partial partial nephrectomy was performed under the guidance of B-ultrasonography in the course of surgery. The discussion was based on the literature. Results: The renal tumors in all 3 patients were less than 2.0 cm in diameter. The surface of the kidney was not prominent. The appearance of the kidney during operation was normal. Kidney tumors were removed under the guidance of B ultrasound, and renal function was retained. Postoperative biochemical, B ultrasound, CT follow-up of 6 months to 5 years, good renal function, no tumor recurrence. Conclusion: The diagnosis of endogenous and central small renal cell carcinoma mainly depends on CT and MRI. The preferred treatment is renal tumor resection for nephron preservation, and the prognosis is good.