OBJECTIVE: To study the sonographic features and patterns of cystic renal carcinomas. METHODS: Thirteen cases of cystic renal carcinoma confirmed by operation and pathology were examined by ultrasonography, and the cy...OBJECTIVE: To study the sonographic features and patterns of cystic renal carcinomas. METHODS: Thirteen cases of cystic renal carcinoma confirmed by operation and pathology were examined by ultrasonography, and the cystic walls, septa and solid mural nodules were studied. RESULTS: Solid mural nodules of some cases and irregular thickening of the cystic walls and septa were characteristic findings for the ultrasonic diagnosis of cystic renal carcinomas. According to their pathologic mechanisms and sonographic features, cystic renal carcinomas were classified into 3 patterns: unilocular cystic mass, multiloculated cystic mass and cystic-solid mass. CONCLUSIONS: Typical cystic renal carcinomas can be well diagnosed, while atypical cases may be misdiagnosed as benign renal cysts by ultrasonography. Color Doppler ultrasonography and needle aspiration guided by ultrasonography are helpful in the diagnosis of these atypical cases.展开更多
BACKGROUND Eosinophilic solid and cystic(ESC)renal cell carcinoma(RCC),a unique and emerging subtype of RCC,has an indolent nature;in some rare instances,it may exhibit metastatic potential.Current cases are inadequat...BACKGROUND Eosinophilic solid and cystic(ESC)renal cell carcinoma(RCC),a unique and emerging subtype of RCC,has an indolent nature;in some rare instances,it may exhibit metastatic potential.Current cases are inadequate to precisely predict the clinical outcome of ESC RCC and determine treatment choices.CASE SUMMARY Herein,we report two patients with ESC RCC.Patient 1 was a young woman with classical pathological characteristics.Patient 2 was a 52-year-old man with multifocal metastases,involving the pulmonary hilar and mediastinal lymph nodes,liver,brain,mesosternum,vertebra,rib,femur,and symphysis pubis.Awareness of ESC RCC,along with its characteristic architecture and immunophenotype,would contribute to making a definitive diagnosis,even on core biopsy samples.CONCLUSION The discovery of ESC RCC molecular signatures may provide new therapeutic strategies in the future.展开更多
OBJECTIVE To study the clinical, pathologic and imaging features of multilocular cystic renal cell carcinoma （MCRCC） and to review the diagnosis and treatment of this subtype of renal cell carcinoma （RCC）. METHODS...OBJECTIVE To study the clinical, pathologic and imaging features of multilocular cystic renal cell carcinoma （MCRCC） and to review the diagnosis and treatment of this subtype of renal cell carcinoma （RCC）. METHODS The data from 8 cases （mean age, 49.4; 5 men and 3 women） who had been treated from 2004 to 2006, were reviewed retrospectively. Radiologic and pathologic documents were evaluated. For treatments, radical nephrectomy was conducted in 4 patients, partial nephrectomy in 2 and laparoscopic nephrectomy in 2. RESULTS Postoperative pathological findings confirmed the diagnosis of MCRCC. The stage of all 8 cases was pT1. For pathologic grade, 7 cases were G1 and 1 case was G2. Seven patients available for follow-up had survived tumor-free during the mean time of 8 months. CONCLUSION MCRCC is an uncommon subtype of RCC, it has a lower malignant potential and a better prognosis compared with other types of RCC. Nephron-sparing surgery may be an appropriate treatment options for MCRCC.展开更多
BACKGROUND Polycystic liver disease(PCLD) with a large cystic volume deteriorates the quality of life of patients through substantial effects on the adjacent organs,recurrent cyst infections, cyst rupture, and hemorrh...BACKGROUND Polycystic liver disease(PCLD) with a large cystic volume deteriorates the quality of life of patients through substantial effects on the adjacent organs,recurrent cyst infections, cyst rupture, and hemorrhage. Surgical or radiological intervention is usually needed to alleviate these symptoms. We report a rare case of the cystic metastasis of renal cell carcinoma(RCC), which was misdiagnosed as PCLD, as a result of the clinical and radiological similarity between these disorders.CASE SUMMARY A 74-year-old female who had undergone nephrectomy for papillary-type RCC(PRCC) was suffering from abdominal pain and the recurrent intracystic hemorrhage of multiple cysts in the liver. Imaging studies and aspiration cytology of the cysts showed no evidence of malignancy. With a diagnosis of autosomal dominant polycystic liver disease, the patient received hepatectomy for the purpose of mass reduction and infectious cyst removal. Surgery was performed without complications, and the patient was discharged on postoperative day 14. Postoperatively, the pathology revealed a diagnosis of recurrent PRCC with cystic formation.CONCLUSION This case demonstrates the importance of excluding the cystic metastasis of a cancer when liver cysts are observed.展开更多
Objective To discuss the diagnosis and surgical management of multilocular cystic renal cell carcinoma ( MCRCC) and to evaluate the gene function of the mutation of von Hippel-Lindau ( VHL) gene in MCRCC. Methods Seve...Objective To discuss the diagnosis and surgical management of multilocular cystic renal cell carcinoma ( MCRCC) and to evaluate the gene function of the mutation of von Hippel-Lindau ( VHL) gene in MCRCC. Methods Seventeen MCRCC cases ( 11 men and展开更多
Our knowledge of renal cell carcinoma(RCC) is rapidly expanding. For those who diagnose and treat RCC, it is important to understand the new developments. In recent years, many new renal tumors have been described and...Our knowledge of renal cell carcinoma(RCC) is rapidly expanding. For those who diagnose and treat RCC, it is important to understand the new developments. In recent years, many new renal tumors have been described and defined, and our understanding of the biology and clinical correlates of these tumors is changing. Evolving concepts in Xp11 translocation carcinoma, mucinous tubular and spindle cell carcinoma, multilocular cystic clear cell RCC, and carcinoma associated with neuroblastoma are addressed within this review. Tubulocystic carcinoma, thyroid-like follicular carcinoma of kidney, acquired cystic disease-associated RCC, and clear cell papillary RCC are also described. Finally, candidate entities, including RCC with t(6;11) translocation, hybrid oncocytoma/chromophobe RCC, hereditary leiomyomatosis and RCC syndrome, and renal angiomyoadenomatous tumor are reviewed. Knowledge of these new entities is important for diagnosis, treatment and subsequent prognosis. This review provides a targeted summary of new developments in RCC.展开更多
目的:分析单中心肾部分切除术治疗囊性肾癌的结果,并将其与监测、流行病学和最终结果(Surveillance,Epidemiology,and End Results,SEER)数据库进行对比,探究术后肾功能和肿瘤学结局。方法:纳入2010—2023年就诊于北京大学第三医院(Peki...目的:分析单中心肾部分切除术治疗囊性肾癌的结果,并将其与监测、流行病学和最终结果(Surveillance,Epidemiology,and End Results,SEER)数据库进行对比,探究术后肾功能和肿瘤学结局。方法:纳入2010—2023年就诊于北京大学第三医院(Peking University Third Hospital,PUTH)泌尿外科行肾部分切除术的囊性肾癌患者,收集临床资料并统计基线特征。分别采用肾动态显像和加入了中国种族系数的慢性肾脏病流行病学协作组(Chinese Coefficients for Chronic Kidney Disease Epidemiology Collaboration,C-CKD-EPI)公式测定估算肾小球滤过率(estimated glomerular filtration rate,eGFR),并绘制肾功能的变化曲线,对患者进行随访,记录生存状态。纳入SEER数据库中2000—2020年的囊性肾癌病例,进行倾向性评分匹配(propensity score matching,PSM)以平衡与PUTH患者数据的差异,采用Kaplan-Meier方法描绘PUTH队列和SEER队列的肿瘤特异性生存率(cancer-specific survival,CSS)曲线。结果:PUTH患者队列和SEER数据库中的患者队列分别纳入了38例和385例患者,PSM后各筛选出31例和72例,患者的基线特征仅在肿瘤直径上差异有统计学意义(P=0.042)。PSM后在CSS上差异无统计学意义(P=0.556),SEER队列的中位随访时间为112.5个月,10年生存率为97.2%,PUTH队列的中位随访时间为57.0个月、10年生存率为100.0%。肾动态显像测定的eGFR与基于肌酐估算的结果差异无统计学意义(P=0.073);术前、术后短期、术后长期之间的eGFR差异有统计学意义(P<0.001),具体为术后短期肾功能下降,术后长期肾功能恢复。结论:肾部分切除术治疗囊性肾癌是安全可行的,具有较好的肾功能和肿瘤学结局。展开更多
文摘OBJECTIVE: To study the sonographic features and patterns of cystic renal carcinomas. METHODS: Thirteen cases of cystic renal carcinoma confirmed by operation and pathology were examined by ultrasonography, and the cystic walls, septa and solid mural nodules were studied. RESULTS: Solid mural nodules of some cases and irregular thickening of the cystic walls and septa were characteristic findings for the ultrasonic diagnosis of cystic renal carcinomas. According to their pathologic mechanisms and sonographic features, cystic renal carcinomas were classified into 3 patterns: unilocular cystic mass, multiloculated cystic mass and cystic-solid mass. CONCLUSIONS: Typical cystic renal carcinomas can be well diagnosed, while atypical cases may be misdiagnosed as benign renal cysts by ultrasonography. Color Doppler ultrasonography and needle aspiration guided by ultrasonography are helpful in the diagnosis of these atypical cases.
文摘BACKGROUND Eosinophilic solid and cystic(ESC)renal cell carcinoma(RCC),a unique and emerging subtype of RCC,has an indolent nature;in some rare instances,it may exhibit metastatic potential.Current cases are inadequate to precisely predict the clinical outcome of ESC RCC and determine treatment choices.CASE SUMMARY Herein,we report two patients with ESC RCC.Patient 1 was a young woman with classical pathological characteristics.Patient 2 was a 52-year-old man with multifocal metastases,involving the pulmonary hilar and mediastinal lymph nodes,liver,brain,mesosternum,vertebra,rib,femur,and symphysis pubis.Awareness of ESC RCC,along with its characteristic architecture and immunophenotype,would contribute to making a definitive diagnosis,even on core biopsy samples.CONCLUSION The discovery of ESC RCC molecular signatures may provide new therapeutic strategies in the future.
文摘OBJECTIVE To study the clinical, pathologic and imaging features of multilocular cystic renal cell carcinoma （MCRCC） and to review the diagnosis and treatment of this subtype of renal cell carcinoma （RCC）. METHODS The data from 8 cases （mean age, 49.4; 5 men and 3 women） who had been treated from 2004 to 2006, were reviewed retrospectively. Radiologic and pathologic documents were evaluated. For treatments, radical nephrectomy was conducted in 4 patients, partial nephrectomy in 2 and laparoscopic nephrectomy in 2. RESULTS Postoperative pathological findings confirmed the diagnosis of MCRCC. The stage of all 8 cases was pT1. For pathologic grade, 7 cases were G1 and 1 case was G2. Seven patients available for follow-up had survived tumor-free during the mean time of 8 months. CONCLUSION MCRCC is an uncommon subtype of RCC, it has a lower malignant potential and a better prognosis compared with other types of RCC. Nephron-sparing surgery may be an appropriate treatment options for MCRCC.
文摘BACKGROUND Polycystic liver disease(PCLD) with a large cystic volume deteriorates the quality of life of patients through substantial effects on the adjacent organs,recurrent cyst infections, cyst rupture, and hemorrhage. Surgical or radiological intervention is usually needed to alleviate these symptoms. We report a rare case of the cystic metastasis of renal cell carcinoma(RCC), which was misdiagnosed as PCLD, as a result of the clinical and radiological similarity between these disorders.CASE SUMMARY A 74-year-old female who had undergone nephrectomy for papillary-type RCC(PRCC) was suffering from abdominal pain and the recurrent intracystic hemorrhage of multiple cysts in the liver. Imaging studies and aspiration cytology of the cysts showed no evidence of malignancy. With a diagnosis of autosomal dominant polycystic liver disease, the patient received hepatectomy for the purpose of mass reduction and infectious cyst removal. Surgery was performed without complications, and the patient was discharged on postoperative day 14. Postoperatively, the pathology revealed a diagnosis of recurrent PRCC with cystic formation.CONCLUSION This case demonstrates the importance of excluding the cystic metastasis of a cancer when liver cysts are observed.
文摘Objective To discuss the diagnosis and surgical management of multilocular cystic renal cell carcinoma ( MCRCC) and to evaluate the gene function of the mutation of von Hippel-Lindau ( VHL) gene in MCRCC. Methods Seventeen MCRCC cases ( 11 men and
文摘Our knowledge of renal cell carcinoma(RCC) is rapidly expanding. For those who diagnose and treat RCC, it is important to understand the new developments. In recent years, many new renal tumors have been described and defined, and our understanding of the biology and clinical correlates of these tumors is changing. Evolving concepts in Xp11 translocation carcinoma, mucinous tubular and spindle cell carcinoma, multilocular cystic clear cell RCC, and carcinoma associated with neuroblastoma are addressed within this review. Tubulocystic carcinoma, thyroid-like follicular carcinoma of kidney, acquired cystic disease-associated RCC, and clear cell papillary RCC are also described. Finally, candidate entities, including RCC with t(6;11) translocation, hybrid oncocytoma/chromophobe RCC, hereditary leiomyomatosis and RCC syndrome, and renal angiomyoadenomatous tumor are reviewed. Knowledge of these new entities is important for diagnosis, treatment and subsequent prognosis. This review provides a targeted summary of new developments in RCC.
文摘目的:分析单中心肾部分切除术治疗囊性肾癌的结果,并将其与监测、流行病学和最终结果(Surveillance,Epidemiology,and End Results,SEER)数据库进行对比,探究术后肾功能和肿瘤学结局。方法:纳入2010—2023年就诊于北京大学第三医院(Peking University Third Hospital,PUTH)泌尿外科行肾部分切除术的囊性肾癌患者,收集临床资料并统计基线特征。分别采用肾动态显像和加入了中国种族系数的慢性肾脏病流行病学协作组(Chinese Coefficients for Chronic Kidney Disease Epidemiology Collaboration,C-CKD-EPI)公式测定估算肾小球滤过率(estimated glomerular filtration rate,eGFR),并绘制肾功能的变化曲线,对患者进行随访,记录生存状态。纳入SEER数据库中2000—2020年的囊性肾癌病例,进行倾向性评分匹配(propensity score matching,PSM)以平衡与PUTH患者数据的差异,采用Kaplan-Meier方法描绘PUTH队列和SEER队列的肿瘤特异性生存率(cancer-specific survival,CSS)曲线。结果:PUTH患者队列和SEER数据库中的患者队列分别纳入了38例和385例患者,PSM后各筛选出31例和72例,患者的基线特征仅在肿瘤直径上差异有统计学意义(P=0.042)。PSM后在CSS上差异无统计学意义(P=0.556),SEER队列的中位随访时间为112.5个月,10年生存率为97.2%,PUTH队列的中位随访时间为57.0个月、10年生存率为100.0%。肾动态显像测定的eGFR与基于肌酐估算的结果差异无统计学意义(P=0.073);术前、术后短期、术后长期之间的eGFR差异有统计学意义(P<0.001),具体为术后短期肾功能下降,术后长期肾功能恢复。结论:肾部分切除术治疗囊性肾癌是安全可行的,具有较好的肾功能和肿瘤学结局。
