BACKGROUND Up until now,no research has been reported on the association between the cli-nical growth rate of multilocular cystic renal neoplasm of low malignant potential(MCRNLMP)and computed tomography(CT)imaging ch...BACKGROUND Up until now,no research has been reported on the association between the cli-nical growth rate of multilocular cystic renal neoplasm of low malignant potential(MCRNLMP)and computed tomography(CT)imaging characteristics.Our study sought to examine the correlation between them,with the objective of distin-guishing unique features of MCRNLMP from renal cysts and exploring effective management strategies.AIM To investigate optimal management strategies of MCRNLMP.METHODS We retrospectively collected and analyzed data from 1520 patients,comprising 1444 with renal cysts and 76 with MCRNLMP,who underwent renal cyst decom-pression,radical nephrectomy,or nephron-sparing surgery for renal cystic disease between January 2013 and December 2021 at our institution.Detection of MC-RNLMP utilized the Bosniak classification for imaging and the 2016 World Health Organization criteria for clinical pathology.RESULTS Our meticulous exploration has revealed compelling findings on the occurrence of MCRNLMP.Precisely,it comprises 1.48%of all cases involving simple renal cysts,5.26%of those with complex renal cysts,and a noteworthy 12.11%of renal tumors coexisting with renal cysts,indicating a statistically significant difference(P=0.001).Moreover,MCRNLMP constituted a significant 22.37%of the patient po-pulation whose cysts demonstrated a rapid growth rate of≥2.0 cm/year,whereas it only represented 0.66%among those with a growth rate below 2.0 cm/year.Of the 76 MCRNLMP cases studied,none of the nine patients who underwent subsequent nephron-sparing surgery or radical nephrectomy following renal cyst decompression experienced recurrence or metastasis.In the remaining 67 patients,who were actively monitored over a 3-year postoperative period,only one showed suspicious recurrence on CT scans.CONCLUSION MCRNLMP can be tentatively identified and categorized into three types based on CT scanning and growth rate indicators.In treating MCRNLMP,partial nephrectomy is preferred,while radical nephrectomy should be minimi-zed.After surgery,active monitoring is advisable to prevent unnecessary nephrectomy.展开更多
目的 探讨低度恶性潜能的多房囊性肾肿瘤(MCRNLMP)的临床病理特征及诊疗。方法选择福建省立医院泌尿外科2004~2018年期间收治的35例MCRNLMP患者,其中施行根治性肾肿瘤切除术(RN)4例,开放保留肾单位肾部分切除术(ONSS)19例,腹腔镜下(经...目的 探讨低度恶性潜能的多房囊性肾肿瘤(MCRNLMP)的临床病理特征及诊疗。方法选择福建省立医院泌尿外科2004~2018年期间收治的35例MCRNLMP患者,其中施行根治性肾肿瘤切除术(RN)4例,开放保留肾单位肾部分切除术(ONSS)19例,腹腔镜下(经腹或经腰)肾部分切除术(LNSS)12例。回顾性分析其临床资料。结果 MCRNLMP总体发病率上,男性高于女性(1.92∶1)。患肾均为单侧单发,无偏极倾向。肿瘤平均直径为3.56 cm。术后共8例(22.8%)发生并发症,其中6例为轻微(17.1%),2例严重(5.7%),均转归良好。切缘残留阳性3例(其中ONSS组1例,LNSS组2例)。TNM分期中,31例(88.6%)为T 1 N 0 M 0 ,4例(11.4%)为T 2 N 0 M 0 ,未发现T 3及更高。Fuhrman核分级方面,Ⅰ级为23例(65.7%),Ⅱ级12例(34.3%),未发现Ⅲ或Ⅳ级。在平均随访期内(76.3月),仅1例局部复发,余均未发现肿瘤复发或转移的征象,无瘤生存率(DFS)为97.1%。结论 MCRNLMP患者术后短、中期预后极佳,在完整切除肿瘤的前提下其预后趋势与瘤体大小、切缘阳性等因素无明显相关。推荐LNSS作为处理此特殊类型肿瘤的首选术式。展开更多
基金Supported by Tianjin Municipal Natural Science Foundation,No.21JCYBJC01690.
文摘BACKGROUND Up until now,no research has been reported on the association between the cli-nical growth rate of multilocular cystic renal neoplasm of low malignant potential(MCRNLMP)and computed tomography(CT)imaging characteristics.Our study sought to examine the correlation between them,with the objective of distin-guishing unique features of MCRNLMP from renal cysts and exploring effective management strategies.AIM To investigate optimal management strategies of MCRNLMP.METHODS We retrospectively collected and analyzed data from 1520 patients,comprising 1444 with renal cysts and 76 with MCRNLMP,who underwent renal cyst decom-pression,radical nephrectomy,or nephron-sparing surgery for renal cystic disease between January 2013 and December 2021 at our institution.Detection of MC-RNLMP utilized the Bosniak classification for imaging and the 2016 World Health Organization criteria for clinical pathology.RESULTS Our meticulous exploration has revealed compelling findings on the occurrence of MCRNLMP.Precisely,it comprises 1.48%of all cases involving simple renal cysts,5.26%of those with complex renal cysts,and a noteworthy 12.11%of renal tumors coexisting with renal cysts,indicating a statistically significant difference(P=0.001).Moreover,MCRNLMP constituted a significant 22.37%of the patient po-pulation whose cysts demonstrated a rapid growth rate of≥2.0 cm/year,whereas it only represented 0.66%among those with a growth rate below 2.0 cm/year.Of the 76 MCRNLMP cases studied,none of the nine patients who underwent subsequent nephron-sparing surgery or radical nephrectomy following renal cyst decompression experienced recurrence or metastasis.In the remaining 67 patients,who were actively monitored over a 3-year postoperative period,only one showed suspicious recurrence on CT scans.CONCLUSION MCRNLMP can be tentatively identified and categorized into three types based on CT scanning and growth rate indicators.In treating MCRNLMP,partial nephrectomy is preferred,while radical nephrectomy should be minimi-zed.After surgery,active monitoring is advisable to prevent unnecessary nephrectomy.
文摘目的 探讨低度恶性潜能的多房囊性肾肿瘤(MCRNLMP)的临床病理特征及诊疗。方法选择福建省立医院泌尿外科2004~2018年期间收治的35例MCRNLMP患者,其中施行根治性肾肿瘤切除术(RN)4例,开放保留肾单位肾部分切除术(ONSS)19例,腹腔镜下(经腹或经腰)肾部分切除术(LNSS)12例。回顾性分析其临床资料。结果 MCRNLMP总体发病率上,男性高于女性(1.92∶1)。患肾均为单侧单发,无偏极倾向。肿瘤平均直径为3.56 cm。术后共8例(22.8%)发生并发症,其中6例为轻微(17.1%),2例严重(5.7%),均转归良好。切缘残留阳性3例(其中ONSS组1例,LNSS组2例)。TNM分期中,31例(88.6%)为T 1 N 0 M 0 ,4例(11.4%)为T 2 N 0 M 0 ,未发现T 3及更高。Fuhrman核分级方面,Ⅰ级为23例(65.7%),Ⅱ级12例(34.3%),未发现Ⅲ或Ⅳ级。在平均随访期内(76.3月),仅1例局部复发,余均未发现肿瘤复发或转移的征象,无瘤生存率(DFS)为97.1%。结论 MCRNLMP患者术后短、中期预后极佳,在完整切除肿瘤的前提下其预后趋势与瘤体大小、切缘阳性等因素无明显相关。推荐LNSS作为处理此特殊类型肿瘤的首选术式。
