BACKGROUND Renal cell carcinomas are usually unilateral.However,they are bilateral in 2%to 4%of sporadic cases and is considerably more common in familial cases.Synchronous sporadic bilateral multiple chromophobe rena...BACKGROUND Renal cell carcinomas are usually unilateral.However,they are bilateral in 2%to 4%of sporadic cases and is considerably more common in familial cases.Synchronous sporadic bilateral multiple chromophobe renal cell carcinoma(CHRCC)with different subtypes is rare.CASE SUMMARY In this case report,we describe a case of synchronous bilateral CHRCC with two histological variants,accompanied by a clear cell carcinoma and a cyst in a 50-year-old male.The patient underwent retroperitoneal laparoscopic bilateral nephron-sparing surgery and there was no serious postoperative renal dysfunction.CONCLUSION We report a rare case of synchronous bilateral CHRCC with two histological variants associated with a clear cell carcinoma and a cyst.展开更多
Chromophobe renal cell carcinoma （CRCC） is a distinctive, but not rare, malignant renal neoplasm.Series studies have revealed that the incidence of CRCC is between 3.6% and 10.4% of all kidney neoplasms. In China, t...Chromophobe renal cell carcinoma （CRCC） is a distinctive, but not rare, malignant renal neoplasm.Series studies have revealed that the incidence of CRCC is between 3.6% and 10.4% of all kidney neoplasms. In China, the first CRCC case was described by our hospital in 1998; there have since been only a few case reports of CRCC in China and very few instances of long-term follow-up. To our knowledge, there is little information available regarding the clinical outcomes of patients with CRCC. In order to analyze the clinical and pathologic characteristics of CRCC and the prognosis in Chinese patients, we reviewed retrospectively the clinical data from cases of CRCC treated recently in our hospital.展开更多
Synchronous bilateral multiple chromophobe cell renal carcinoma is rare; here we report a case diagnosed with bilateral renal multiple tumors complicated with a cyst in the right kidney. Retroperitoneal laparoscopic b...Synchronous bilateral multiple chromophobe cell renal carcinoma is rare; here we report a case diagnosed with bilateral renal multiple tumors complicated with a cyst in the right kidney. Retroperitoneal laparoscopic bilateral nephron sparing surgery was performed and there was no serious postoperative renal dysfunction. Pathological and immunohistochemical diagnoses of both tumors were chromophobe cell renal carcinoma. The patient has been doing well without any evidence of recurrence or metastasis for 6 months.展开更多
Background:Renal cell carcinoma(RCC)is among the top adult cancers worldwide,with a challenging management due to lack of early diagnosis,therapy resistance,and diverse molecular background.Aberrant DNA methylation ha...Background:Renal cell carcinoma(RCC)is among the top adult cancers worldwide,with a challenging management due to lack of early diagnosis,therapy resistance,and diverse molecular background.Aberrant DNA methylation has been associated with RCC development due to transcription deregulation.We discovered potential DNA methylation-based biomarkers for stage I RCC in Caucasian population from The Cancer Genome Atlas(TCGA)database.Methods:Patients’clinical,methylation beta-value,and mRNA expression data were retrieved.Differential methylation and expression analysis were conducted to obtain differentially methylated CpG-gene pairs.Inversely correlated CpG-gene pairs between their expression and methylation levels were selected using Pearson’s correlation test and then screened for any recorded somatic mutations.Their biomarker capacities were analyzed’using the Kaplan-Meier and receiver operating characteristic analysis,followed by protein network and functional enrichment analysis.Results:We obtained differentially methylated CpGs in clear cell(KIRC)and papillary RCC(KIRP)but not chromophobe RCC(KICH).Six inversely correlated CpG-gene pairs with no reported cancer-associated mutations were selected.Prognostic values were found in ATXN1 and RFTN1 for KIRC,along with GRAMD1B and TM4SF19 for KIRP,while diagnostic values were found in VIM and RFTN1 for KIRC,along with TNFAIP6 and TM4SF19 for KIRP.Both subtypes showed enrichment of immune and metabolism-related pathways.Conclusion:We discovered novel potential DNA methylation-based prognostic and diagnostic markers for early-stage RCC in Caucasian population.Validation by wet laboratory analysis and adjustments for confounding variables might be needed,considering our study limitation to specific race.展开更多
文摘BACKGROUND Renal cell carcinomas are usually unilateral.However,they are bilateral in 2%to 4%of sporadic cases and is considerably more common in familial cases.Synchronous sporadic bilateral multiple chromophobe renal cell carcinoma(CHRCC)with different subtypes is rare.CASE SUMMARY In this case report,we describe a case of synchronous bilateral CHRCC with two histological variants,accompanied by a clear cell carcinoma and a cyst in a 50-year-old male.The patient underwent retroperitoneal laparoscopic bilateral nephron-sparing surgery and there was no serious postoperative renal dysfunction.CONCLUSION We report a rare case of synchronous bilateral CHRCC with two histological variants associated with a clear cell carcinoma and a cyst.
文摘Chromophobe renal cell carcinoma （CRCC） is a distinctive, but not rare, malignant renal neoplasm.Series studies have revealed that the incidence of CRCC is between 3.6% and 10.4% of all kidney neoplasms. In China, the first CRCC case was described by our hospital in 1998; there have since been only a few case reports of CRCC in China and very few instances of long-term follow-up. To our knowledge, there is little information available regarding the clinical outcomes of patients with CRCC. In order to analyze the clinical and pathologic characteristics of CRCC and the prognosis in Chinese patients, we reviewed retrospectively the clinical data from cases of CRCC treated recently in our hospital.
文摘Synchronous bilateral multiple chromophobe cell renal carcinoma is rare; here we report a case diagnosed with bilateral renal multiple tumors complicated with a cyst in the right kidney. Retroperitoneal laparoscopic bilateral nephron sparing surgery was performed and there was no serious postoperative renal dysfunction. Pathological and immunohistochemical diagnoses of both tumors were chromophobe cell renal carcinoma. The patient has been doing well without any evidence of recurrence or metastasis for 6 months.
基金funded by an internal grant from Indonesia International Institute for Life Sciences(No.001/SK/WRH-IBSn/I/2020).
文摘Background:Renal cell carcinoma(RCC)is among the top adult cancers worldwide,with a challenging management due to lack of early diagnosis,therapy resistance,and diverse molecular background.Aberrant DNA methylation has been associated with RCC development due to transcription deregulation.We discovered potential DNA methylation-based biomarkers for stage I RCC in Caucasian population from The Cancer Genome Atlas(TCGA)database.Methods:Patients’clinical,methylation beta-value,and mRNA expression data were retrieved.Differential methylation and expression analysis were conducted to obtain differentially methylated CpG-gene pairs.Inversely correlated CpG-gene pairs between their expression and methylation levels were selected using Pearson’s correlation test and then screened for any recorded somatic mutations.Their biomarker capacities were analyzed’using the Kaplan-Meier and receiver operating characteristic analysis,followed by protein network and functional enrichment analysis.Results:We obtained differentially methylated CpGs in clear cell(KIRC)and papillary RCC(KIRP)but not chromophobe RCC(KICH).Six inversely correlated CpG-gene pairs with no reported cancer-associated mutations were selected.Prognostic values were found in ATXN1 and RFTN1 for KIRC,along with GRAMD1B and TM4SF19 for KIRP,while diagnostic values were found in VIM and RFTN1 for KIRC,along with TNFAIP6 and TM4SF19 for KIRP.Both subtypes showed enrichment of immune and metabolism-related pathways.Conclusion:We discovered novel potential DNA methylation-based prognostic and diagnostic markers for early-stage RCC in Caucasian population.Validation by wet laboratory analysis and adjustments for confounding variables might be needed,considering our study limitation to specific race.
