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Query: UMLS:C0403608 (ureter)
 9,655 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The Austrian Urological Oncology Group reports on 55 organ-preserving operations in 52 patients with tumors of the upper urinary tract epithelium. The data were gathered from 12 urological departments in the country. There was no evidence of distant metastases in any of the patients at the time of surgery. The observation period ranged from 0.5 to 12 years. 69.2% (36 of 52) of the patients were alive and recurrence-free at the time of data collection, after a mean observation period of 41.4 months. 9.6% died for reasons other than cancer after an average of 18.8 months, and 21.2% were still alive with or had died due to recurrent tumors. The recurrence rate after open surgery was similar in tumors of the upper ureter or pelvis (15.3%) as in tumors of the lower ureter (17.6%). After endoscopic treatment 4 of 9 patients showed recurrences. 92% (22 of 24) of the patients with no compelling indication for organ-preserving therapy were alive and recurrence-free or had died due to other causes. Therefore organ-preserving surgery appears to be appropriate in tumors of the upper urinary tract epithelium.
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PMID:Organ-preserving surgery in patients with urothelial tumors of the upper urinary tract. 226 31

Polyamine concentrations of human cancerous and non-cancerous tissues from the kidney, ureter, bladder were measured by a new enzymatic method for isolation and determination of polyamines. In cancerous and non-cancerous tissue of the organs studied, the spermine level was highest followed by the spermidine and diamine levels. The concentrations of diamine, spermidine and spermine in cancerous tissues were significantly higher than those in non-cancerous tissues, but there was no significant difference in the spermidine/spermine ratio between the cancerous and non-cancerous tissues. These data suggest that polyamines are produced above the normal levels in pathological conditions such as renal cell carcinoma, ureteral cancer and bladder cancer.
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PMID:[Detection of polyamines by a new enzymatic differential assay. (8) Studies on tissue polyamine concentrations in patients with genitourinary malignant diseases]. 226 38

We reviewed 76 cases of renal pelvic and ureteral cancer, admitted to our hospital between January, 1975 and December, 1988, with special reference to the occurrence of bladder cancer. Bladder cancer was associated with an upper urinary tract neoplasm in 35 of the 76 cases (46.1%), 7 with a preceding bladder cancer, 17 with a coexistent one and 11 with a subsequent one. In case of renal pelvic and upper ureteral cancer the incidence of coexistent or subsequent tumors of the bladder was 28.7% (16 of 56 patients). However, in the cases of lower ureteral cancer the incidence of these tumors was 82.4% (14 of 17 patients). This incidence was significantly higher than that in renal pelvic and upper ureteral cancer. The subsequent bladder cancer was observed in 19 patients including 8 patients who had a recurrence of the bladder cancer after the treatment for a preceding and coexistent bladder cancer. The cancer in most cases occurred within 2 years after the treatment of the upper urinary tract neoplasm. Of 19 patients who had subsequent bladder cancer 11 had primary sites in the renal pelvis and upper ureter. Another 8 patient had primary sites in the lower ureter. Four of the 8 subsequent bladder cancers in patients with lower ureteral cancer occurred just on and around the affected ureteral orifice. All these 4 tumors were high grade and high stage tumors. On the other hand, another 15 patients developed subsequent bladder cancer in a place other than the affected ureteral orifice. Of these 15 patients, 13 cases showed a low grade and low stage tumor.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:[A clinical study of associated bladder cancer in patients with renal pelvic and ureteral cancer]. 226 42

Only 5 cases of inverted papilloma of the ureter with a malignant component have been reported previously. We add case 6 to the literature. The incidence of concomitant malignancy in ureteral inverted papillomas is 3 times that found in similar lesions occurring in the bladder.
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PMID:Urothelial carcinoma occurring within an inverted papilloma of the ureter. 231 13

Methotrexate, vinblastine, doxorubicin and cisplatin were used to treat 66 patients with advanced urothelial cancer. Of these 66 patients 58 could be evaluated for response. A total of 84 sites was evaluated in these patients. Response rates were 73% in the bladder, 67% in the renal pelvis, 50% in the ureter, 60% in the lung, 68% in the lymph nodes, 14% in the liver and 25% in the bone. Ten patients (17%) had a complete response and 23 (40%) had a partial response, with an over-all response rate of 57% (the 95% confidence limits are 44 to 69%). The mean durations of response were 10.1 months for complete response patients and 6.2 months for partial response patients. The most prominent toxicity was severe myelosuppression that resulted in 2 septic deaths. While this chemotherapy regimen provided an excellent over-all response rate, the matters of concern were the short duration of response and low effectiveness in the liver and bone.
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PMID:Usefulness and limitations of methotrexate, vinblastine, doxorubicin and cisplatin for the treatment of advanced urothelial cancer. 238 22

Registration of renal pelvic and ureteral tumor was done from 1980 through 1986, in the Tokai Urological Tumor Registry. Among the 404 cases of the carcinoma, 384 cases (210 renal pelvis, 174 ureter) were subjected to the present study. A total of 319 cases (83.1%) showed a complete cure, while 20 cases (5.2%) were considered as partial cure, and 45 cases (11.7%) were classified to progressive disease group. Chemotherapy was performed on 151 patients including systemic administration to 141 patients (33.9%) and 11 patients received combined intravesical instillation therapy. Irradiation was performed on 49 patients (12.8%). Degree of histological and morphological differentiation of renal pelvis and ureter tumor were studied in 341 cases of transitional cell carcinoma (88.8%); G0, 0.3%, G1, 12.9%, G2, 49.3%, Gx, 5.2%. Stage of the tumor were T1, 33.6%; T2, 12.5%; T3, 14.6%; T4, 13.3%; Tis, 0.3%; Tx, 24.7%. Five-year relative survival for carcinoma of the renal pelvis was 46.6%, and for the ureter it was 53.1%. Five-year survival according to histological differentiation of transitional cell carcinoma and according to the stage of the tumor were as follows; G1, 91.6%; G2, 58.5%; G3, 27.2%; Ta, 84.6%; T1. 74.2%; T2, 48.5%; T3, 24.1%, T4, 7.3%. The rate of survival was correlated with histological differentiation of the tumor cells. The survival was poor in cases who had the components of squamous cell carcinoma and/or adenocarcinoma. Overall survived case were 177, 122 patients died of cancer, 20 patients died of other causes than cancer, and 1 patient died from immediate surgical effect.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:[Carcinoma of the renal pelvis and ureter. An investigation of 384 registered cases in the Tokai Urological Cancer Registry]. 240 85

A new enzymatic method for isolation and determination of urinary polyamines was presented and basically studied in previous report 1 and 2 in comparison with existing techniques. Using the new method, urinary polyamines were isolated and determined in 56 patients with genitourinary cancer. Urinary polyamines were also determined in 63 controls consisting of 20 normal subjects, 25 patients with benign urological disease and 18 patients with BPH. The mean concentrations of Diamine, Spermidine, Spermine in 20 normal subjects were 16.6 +/- 5.8 mumoles/g Cr, 4.7 +/- 2.0 mumoles/g Cr and 0.99 +/- 0.51 mumoles/g Cr respectively. To emphasize the specificity to cancer, the level of positiveness was modified to a higher value than M+3SD. The positive values thus calculated were 40 mumoles/g Cr for Diamine, 15 mumoles/g Cr for Spermidine and 3 mumoles/g Cr for Spermine. The positive ratios of Diamine in patients with early cancer were 43% in renal cell cancer, 20% in pelvic and ureter cancer, 0% in bladder cancer and 20% in prostatic cancer. Those of Spermidine were 29% in renal cell cancer, 0% in pelvic and ureter cancer, 20% in bladder cancer and 40% in prostatic cancer. Those of Spermine were 29% in renal cell cancer, 20% in pelvic and ureter cancer, 20% in bladder cancer and 0% in prostatic cancer. In early diagnoses, Diamine indicated high positive ratios to renal cell cancer and Spermidine to prostatic cancer. Relatively high positive ratios were demonstrated, when any one of the isolated polyamines was found positive: namely, 57% in renal cell cancer, 20% in pelvic and ureter cancer, 30% in bladder cancer and 40% in prostatic cancer.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:[Detection of urinary polyamine by a new enzymatic differential assay. (III). Studies on urinary polyamines in patients with malignant genitourinary diseases]. 242 8

Over a twenty-one-year period (1963-1984) 46 patients underwent a permanent urinary diversion using cutaneous ureterostomy. Thirty-seven of these patients had this method of diversion employed as palliation for pelvic malignancies. In 70 per cent of the patients diversion was done secondary to ureteral obstruction and in the other patients because of either severe lower urinary tract symptoms or a failed alternate form of diversion. Forty-nine per cent of the patients experienced a postoperative complication. The late postoperative complications were either related to the choice of diversion or presumed progression of the patient's disease. Palliative diversion is now best initially attempted with percutaneous nephrostomy or indwelling ureteral stents if bladder function allows. Cutaneous ureterostomy no longer is indicated as a primary form of palliative diversion, however, it may be used as an alternative to open nephrostomy tube placement or intestinal conduit should other more conservative forms of management fail. The presence of at least one dilated ureter is a prerequisite to the success of this form of diversion.
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PMID:Cutaneous ureterostomy as palliative diversion in adults with malignancy. 244 Jan 71

The effect of postoperative adjuvant chemotherapy was studied in 22 cases of advanced urinary epithelial cancer. Vincristine, mitomycin C and bleomycin (VMB) was administered in combination to 9 prophase cases from December, 1980 to March, 1982 and cis-dichlorodiamine platinum, peplomycin and mitomycin C (PPM) in combination to 13 anaphase cases from April, 1982 to November, 1984. The site was renal pelvic cancer in 3 cases, cancer of the ureter in 3 cases, cancer of the bladder in 13 cases, cancer of the pelvis, ureter, and bladder in 1 case, and recurrence of pelvic cancer following bladder cancer in 2 cases. The degree of invasion was pTa in 2 cases, pT1 in 1 case, pT2 in 1 case, pT3 in 11 cases and pT4 in 5 cases. Lymph node metastasis had occurred in 9 cases, no metastasis in 8 cases and it was unclear in the remaining 6 cases. The mean observation period was 16.5 months; 10 patients were alive without any tumors, one patient was alive with a tumor, 11 patients died of cancer, and one patient died intercurrently. The mean postoperative survival period in the mortality cases was 14.5 months. According to the classified type of chemotherapy received, there were 3 out of 9 cases (33.3%) who survived without tumors after receiving VMP and 7 out of 13 cases (53.8%) in the PPM group who survived without tumors. Although a simple comparison cannot be made, it appears that PPM therapy is superior. No severe side-effects were observed.
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PMID:[A study of postoperative adjuvant chemotherapy of advanced urinary epithelial cancer]. 245 16

A variety of methods for urinary diversion are employed in patients with gynecologic malignancies depending on whether there is an obstruction or fistula formation due to either tumor growth or radiotherapeutic injury. Percutaneous nephrostomy (PCN) has a low complication rate and is a good method for palliative urinary diversion or may precede some form of permanent diversion to restore the kidney function first. Indication for palliative diversion in tumor obstruction depends on many individual factors. A relative contraindication is tumor progression during therapy. 6-month survival was about 70% in patients with previously untreated tumors or recurrences. This rate is far better than reported in earlier studies, so that a palliative diversion has to be considered for these patients. Also a high rate of recanalization after therapy could be observed in the untreated group, allowing the PCN to be removed. However, this has not been shown to be a prognostic factor. In the individual patient some other aspects, such as quality of life and social status, have to be taken into account before a final decision can be made. Ureteral obstruction after radiotherapy is a rare finding and often mistaken for a more likely recurrence. Different methods to restore the urinary tract, such as reimplantation of the ureter, should be used as a first choice. When the stenosis is due to radiocystitis, enterocytoplasty will often be indicated. Diversion has then to be omitted. The poor quality of life because of permanent incontinence due to fistula formation makes diversion mandatory even if life expectancy is very short. Surgical closure of a large radiogenic fistula is rarely successful. In this situation, ileal conduit has proven its efficacy for long-term urinary diversion.
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PMID:Urinary diversion in gynecologic malignancies. 245 37


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