SINCE the introduction of double J stents in 1978, ureteral stents have become an integral tool in treating ureteral obstruction from calculi and other causes.1 Owing to the widespread usageof indwelling ureteral cath...SINCE the introduction of double J stents in 1978, ureteral stents have become an integral tool in treating ureteral obstruction from calculi and other causes.1 Owing to the widespread usageof indwelling ureteral catheters, a number of possible complications such as migration, infection, pyelonephritis, breakage, encrustation, stone formation, and ureteral stents fragmentation have been noted.2 Of all the complications, ureteral stent fragmentation was sporadically reported and believed to be rare. Here we present a case of fragmentation of a new type of double J stent, which was used to provide free drainage to the bladder after balloon dilation.展开更多
Objective： The aim of this study was to summarize the clinicopathological characteristics of patients with renal pelvis and ureteral carcinomas, and analyze the recurrence in the remaining urinary tract and metastasi...Objective： The aim of this study was to summarize the clinicopathological characteristics of patients with renal pelvis and ureteral carcinomas, and analyze the recurrence in the remaining urinary tract and metastasis outside the urinary tract after surgical treatment. Methods： The patients＇ characteristics, tumor stage and grade, recurrence and metastasis distribution were summarized by tables, respectively. Spearman rank test, Log-rank test, Kaplan-Meier survival curve, and Cox proportional hazards regression model were used to make statistical analysis. Results： A total of 63 patients with 30 men, 33 women, 30 renal pelvic tumors and 33 ureteral tumors was found. Seven had muttifocal lesions. Fifty-four underwent surgical operation, which contained 49 cases of pathologically confirmed transitional cell carcinoma, 4 transitional cell carcinoma with squamous differentiation, and 1 squamous cell carcinoma. Tumor stage and grade had positive correlation. Among the 34 followed-up cases, 21 had no metastasis, 10 had metastasis, in which stage T3-4 groups accounted for 90%, and 5 developed tumor recurrences. The metastasis-free survivals had no significant difference between renal pelvic carcinoma and ureteral carcinoma, but had significant difference between high, middle and low stage groups, and between high and low grade groups. Conclusion： The incidence rates of the renal pelvic carcinoma and ureteral carcinoma is similar and no gender difference. Multifocal lesions can be seen Jn any stage and grade, but this is not necessarily a symbol of poor prognosis. The bladder recurrences is often seen in the cases with initially multifocal lesions or lesions in the middle or lower portion of the ureter. The prognosis is good after resection of the recurrence lesion. The prognosis get worse with the increasing stages and grades. Stage is the main factor to influence the survival. Metastasis outside the urinary tract is often seen in patients with high stage tumors.展开更多
Objective To investigate ureteral injury during gynecological laparoscopic surgeries.Methods From January 1990 to December 2005, 12868 gynecological laparoscopic surgeries were conducted in Peking Union Medical Colleg...Objective To investigate ureteral injury during gynecological laparoscopic surgeries.Methods From January 1990 to December 2005, 12868 gynecological laparoscopic surgeries were conducted in Peking Union Medical College Hospital with 12 ureteral injuries reported. The present study investigated several aspects, including surgical indications, uterine size, pelvic adhesion, operative procedures, symptoms, diagnostic time and methods, injury site and type, subsequent treatment, and prognosis. Results The incidence of ureteral injury was 0.093% (12/12868) in all cases, 0.42% (11/2586) in laparoscopic hysterectomy [laparoscopically assisted vaginal hysterectomy (LAVH) or total laparoscopic hysterectomy (TLH)], and 0.01% (1/10282) in non-LAVH surgeries. Enlarged uterus, pelvic adhesion, and endometrosis were risk factors associated with ureteral injury. Only one injury was found intraoperatively while others were found postoperatively. The injury sites were at the pelvic brim (2 cases) or the lower part of ureter (10 cases). Patients were treated with ureteral stenting (effective in 2 cases) or laparotomy and open repair. Prognoses were favorable in most cases. Conclusions Most laparoscopic ureteral injuries occur during laparoscopic hysterectomy. Further evaluation is required when ureteral injury is suspected, and surgical repair is the major treatment for ureteral injury.展开更多
AMYLOIDOSIS of more than two urinary organs happened in one person is very rare.Here we reported a patient with amyloidosis of the left renal pelvis, ipsilateral ureter as well as urinary bladder occurring successively.
DRIMARY benign ureteral tumors are rare and they arise from the mesodermal tissue of the ureteral wall. Less than 200 cases have been docu- mented in published reports.1 Bilateral ureteralfibroepithelial polyps are ex...DRIMARY benign ureteral tumors are rare and they arise from the mesodermal tissue of the ureteral wall. Less than 200 cases have been docu- mented in published reports.1 Bilateral ureteralfibroepithelial polyps are extremely rare and commonly occur in the proximal ureter, causing complete ureteral obstruction. Pyeloplasty is an effective treatment for im- proving renal function. Here we report a case with se- quential bilateral ureteral fibroepithelial polyps causing obstructive hydronephrosis.展开更多
OBJECTIVE To study the clinical pathologic characteristics and differential diagnosis of ureteral fibroepithelial polyps. METHODS One case of ureteral fibroepithelial polyps was studied by clinical data analysis and l...OBJECTIVE To study the clinical pathologic characteristics and differential diagnosis of ureteral fibroepithelial polyps. METHODS One case of ureteral fibroepithelial polyps was studied by clinical data analysis and light microscopy. RESULTS The tumor was located in the lower ureter. Histologically, the polyp was composed of expanded blood vessels and fibrous connective tissue under normal or proliferous transitional epithelium. CONCLUSION Benign ureteral fibroepithelial polyps are extremely rare, recognition of it's precise histological features can facilitate its correct diagnosis.展开更多
Retroperitoneal fibrosis (RPF) is a rare condition of unclear etiology. It can cause ureteral obstruction. We present the unique case of a 54 years old female, who initially presented with spontaneous perforation of t...Retroperitoneal fibrosis (RPF) is a rare condition of unclear etiology. It can cause ureteral obstruction. We present the unique case of a 54 years old female, who initially presented with spontaneous perforation of the cecum. Upon exploring the abdomen, the classical glistening white, unyielding retroperitoneal fibrosis was encountered. A right hemicolectomy was performed. Subsequently, the patient presented with bilateral ureteral obstruction, and later on with small bowel obstruction. Ureteral obstruction was treated with stents, and small bowel obstruction was treated with bypass. To our knowledge no case of idiopathic RPF presenting with features of both bilateral ureteral and small bowel obstruction has been reported in the literature.展开更多
文摘SINCE the introduction of double J stents in 1978, ureteral stents have become an integral tool in treating ureteral obstruction from calculi and other causes.1 Owing to the widespread usageof indwelling ureteral catheters, a number of possible complications such as migration, infection, pyelonephritis, breakage, encrustation, stone formation, and ureteral stents fragmentation have been noted.2 Of all the complications, ureteral stent fragmentation was sporadically reported and believed to be rare. Here we present a case of fragmentation of a new type of double J stent, which was used to provide free drainage to the bladder after balloon dilation.
文摘Objective： The aim of this study was to summarize the clinicopathological characteristics of patients with renal pelvis and ureteral carcinomas, and analyze the recurrence in the remaining urinary tract and metastasis outside the urinary tract after surgical treatment. Methods： The patients＇ characteristics, tumor stage and grade, recurrence and metastasis distribution were summarized by tables, respectively. Spearman rank test, Log-rank test, Kaplan-Meier survival curve, and Cox proportional hazards regression model were used to make statistical analysis. Results： A total of 63 patients with 30 men, 33 women, 30 renal pelvic tumors and 33 ureteral tumors was found. Seven had muttifocal lesions. Fifty-four underwent surgical operation, which contained 49 cases of pathologically confirmed transitional cell carcinoma, 4 transitional cell carcinoma with squamous differentiation, and 1 squamous cell carcinoma. Tumor stage and grade had positive correlation. Among the 34 followed-up cases, 21 had no metastasis, 10 had metastasis, in which stage T3-4 groups accounted for 90%, and 5 developed tumor recurrences. The metastasis-free survivals had no significant difference between renal pelvic carcinoma and ureteral carcinoma, but had significant difference between high, middle and low stage groups, and between high and low grade groups. Conclusion： The incidence rates of the renal pelvic carcinoma and ureteral carcinoma is similar and no gender difference. Multifocal lesions can be seen Jn any stage and grade, but this is not necessarily a symbol of poor prognosis. The bladder recurrences is often seen in the cases with initially multifocal lesions or lesions in the middle or lower portion of the ureter. The prognosis is good after resection of the recurrence lesion. The prognosis get worse with the increasing stages and grades. Stage is the main factor to influence the survival. Metastasis outside the urinary tract is often seen in patients with high stage tumors.
文摘Objective To investigate ureteral injury during gynecological laparoscopic surgeries.Methods From January 1990 to December 2005, 12868 gynecological laparoscopic surgeries were conducted in Peking Union Medical College Hospital with 12 ureteral injuries reported. The present study investigated several aspects, including surgical indications, uterine size, pelvic adhesion, operative procedures, symptoms, diagnostic time and methods, injury site and type, subsequent treatment, and prognosis. Results The incidence of ureteral injury was 0.093% (12/12868) in all cases, 0.42% (11/2586) in laparoscopic hysterectomy [laparoscopically assisted vaginal hysterectomy (LAVH) or total laparoscopic hysterectomy (TLH)], and 0.01% (1/10282) in non-LAVH surgeries. Enlarged uterus, pelvic adhesion, and endometrosis were risk factors associated with ureteral injury. Only one injury was found intraoperatively while others were found postoperatively. The injury sites were at the pelvic brim (2 cases) or the lower part of ureter (10 cases). Patients were treated with ureteral stenting (effective in 2 cases) or laparotomy and open repair. Prognoses were favorable in most cases. Conclusions Most laparoscopic ureteral injuries occur during laparoscopic hysterectomy. Further evaluation is required when ureteral injury is suspected, and surgical repair is the major treatment for ureteral injury.
文摘AMYLOIDOSIS of more than two urinary organs happened in one person is very rare.Here we reported a patient with amyloidosis of the left renal pelvis, ipsilateral ureter as well as urinary bladder occurring successively.
文摘DRIMARY benign ureteral tumors are rare and they arise from the mesodermal tissue of the ureteral wall. Less than 200 cases have been docu- mented in published reports.1 Bilateral ureteralfibroepithelial polyps are extremely rare and commonly occur in the proximal ureter, causing complete ureteral obstruction. Pyeloplasty is an effective treatment for im- proving renal function. Here we report a case with se- quential bilateral ureteral fibroepithelial polyps causing obstructive hydronephrosis.
文摘OBJECTIVE To study the clinical pathologic characteristics and differential diagnosis of ureteral fibroepithelial polyps. METHODS One case of ureteral fibroepithelial polyps was studied by clinical data analysis and light microscopy. RESULTS The tumor was located in the lower ureter. Histologically, the polyp was composed of expanded blood vessels and fibrous connective tissue under normal or proliferous transitional epithelium. CONCLUSION Benign ureteral fibroepithelial polyps are extremely rare, recognition of it's precise histological features can facilitate its correct diagnosis.
文摘Retroperitoneal fibrosis (RPF) is a rare condition of unclear etiology. It can cause ureteral obstruction. We present the unique case of a 54 years old female, who initially presented with spontaneous perforation of the cecum. Upon exploring the abdomen, the classical glistening white, unyielding retroperitoneal fibrosis was encountered. A right hemicolectomy was performed. Subsequently, the patient presented with bilateral ureteral obstruction, and later on with small bowel obstruction. Ureteral obstruction was treated with stents, and small bowel obstruction was treated with bypass. To our knowledge no case of idiopathic RPF presenting with features of both bilateral ureteral and small bowel obstruction has been reported in the literature.
