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

Localized amyloidosis of the genitourinary tract is a rare phenomenon. The differential diagnosis between amyloidosis and malignancy is difficult. We report the case of an 81-year-old man with extensive unilateral localized amyloidosis of the renal pelvis, ureter and ureteral orifice. Diagnosis of amyloidosis was confirmed only postoperatively.
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PMID:Unilateral extended amyloidosis of the renal pelvis and ureter: a case report. 205 34

The multiplicity of transitional cell carcinomas in the renal pelvis, ureter and bladder was analyzed in terms of (1) tumor configuration, i.e., papillary, nodular cancers, (2) associated mucosal changes such as carcinoma in situ (CIS) and dysplasia and (3) the possible involvement of human papillomavirus (HPV) in the development of multiple papillary cancers in the bladder. The incidences of concurrent or subsequent bladder cancer in renal pelvic cancer and/or ureteral cancer cases were 7/31 (22%) for renal pelvic cancer, 17/28 (60%) for ureteral cancer and 10/15 (67%) for renal pelvic and ureteral cancer. In 33 cases of renal pelvic and/or ureteral cancer occurring since 1978, 67% of the papillary and 13% of the nodular cancers in the upper tract exhibited a simultaneous or later development of bladder cancer. In 211 cases of bladder cancer for which cystectomy was performed, 77% of the papillary cancers arose in multiple form, 57% being associated with CIS and/or dysplasia, whereas 72% of the nodular cancers developed singly, 55% being associated with CIS and/or dysplasia. No positive signals hybridizing to HPV types 1, 5, 6, 11, 16, 17, 18, 20, 33 and 38 were detected in any of 19 papillary bladder cancers and 13 specimens of normal bladder mucosa under conditions of low stringency, suggesting that HPV may not be a factor in multiple bladder tumor development. Definite findings from the present study are: (1) there is multiple development of papillary cancers but they remain superficial, whereas nodular cancers develop singly and are invasive, (2)) there was no steady tendency towards a relation between multiplicity and associated mucosal changes, (3) HPV was not, to our knowledge, involved in the multiple development of papillary cancers in the bladder.
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PMID:Development of multiple transitional cell carcinomas in the urinary tract. 206 24

We preoperatively diagnosed four cases suspected as malignant urothelial tumor of upper urinary tract using a rigid ureteroscope. In three cases of ureter tumor, biopsy was successful and showed low grade malignancy. Nephroureterectomy was performed in two cases with upper ureteral tumor. The tumor was fulgurated ureteroscopically in a case of lower ureteral tumor. In one case of renal pelvic tumor, biopsy was unsuccessful though the tumor was observed as a papillary configuration. Successively, biopsy using a flexible ureteroscope was performed and the tumor was treated by fulguration. Ureteroscopy is very useful for preoperative diagnosis of ureteral tumor and selection of treatment.
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PMID:[Diagnosis of the upper urothelial tumor using a rigid ureteroscope]. 207 78

The risk of cancer was analysed in a cohort of 604 male workers who had been engaged in manufacturing and/or handling benzidine and/or beta-naphthylamine during the period 1945-71 at two factories located in the city of Osaka. The cohort was followed up from 1 January 1970 to the date of death or 31 December 1986. The mean follow-up time was 16.1 years. A total of 84 deaths was found compared with 112.66 expected based on the mortality of the Osaka population. Thirty-six were found to be dead of malignant neoplasms; 9 stomach, 2 colon, 1 rectum, 3 liver, 1 bile duct, 1 pancreas, 1 maxillary sinus, 6 lung, 8 bladder, and 2 ureter neoplasms as well as 1 case of myeloid leukemia. Seven cases were ascertained on death certificates as neoplasms of uncertain behaviour, all of which were tumors of genitourinary organs except for one case of brain tumor. Cancers of genitourinary organs and tumors of uncertain behaviour showed statistically significant increased standardized ratios (SMR = 12.20, 4.89). The mean age of death of those having genitourinary organs including cancer was 59 years old, and the latent period between the first exposure and the occurrence of the disease was 19.7 years on average. Non-significant increased risks of cancers of the colon, rectum, liver and lung were observed among the workers exposed to benzidine. Among the 7 histologically confirmed cases of these cancers, there were 2 adenocarcinomas of the lung, 1 adenocarcinoma of the rectum, 2 hepatocellular carcinoma and 1 adenocarcinoma of the bile duct. Seven patients with genitourinary tumors were found to have died of other primary cancers.
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PMID:[Cancer mortality of male workers exposed to benzidine and/or beta-naphthylamine]. 208 66

We compared the descriptive epidemiology of several urinary tract cancers, utilizing incidence data from the United States and international sources. The patterns of cancers of the renal pelvis, ureter, and urethra were more similar to those of bladder cancer than to cancer of the renal parenchyma in several ways: (i) transitional cell carcinoma is the predominant histologic type in the renal pelvis, ureter, urethra, and bladder, whereas the vast majority of renal parenchyma neoplasms are adenocarcinomas; (ii) in situ tumors often appear in all these sites except the renal parenchyma; (iii) rate ratios for renal pelvis/ureter cancers among blacks and Hispanics, relative to whites, are closer to those for bladder than to those for renal parenchymal cancers; (iv) rates among US men and women for cancers of the renal pelvis and ureter are more highly correlated with those for bladder cancer than with those of the renal parenchyma across racial groups; and (v) similar correlations occur among women across geographic areas within the US and internationally. However, the patterns for cancers of the renal pelvis and ureter do not always resemble more closely those for bladder than renal parenchyma cancers and occasionally appear different from one another. These findings indicate the importance of distinguishing tumors based on specific primary site and cell type.
Cancer Causes Control 1990 Sep
PMID:Comparison of the descriptive epidemiology of urinary tract cancers. 210 83

Inverted papilloma of the pelvis and the ureter is a rather uncommon (only 40 cases in the relevant literature) benign epithelial tumor, occasionally harboring foci of malignancy. Since it does not metastasize, a conservative treatment is advisable, but a strict follow up is always required. The Authors report a case of inverted papilloma of the ureter near which an area of transitional carcinoma was discovered.
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PMID:[Inverted papilloma associated with transitional cell carcinoma in the upper urinary tract: report of one case and review of the literature]. 214 19

The patient was a 63-year-old women who visited our hospital with the chief complaints of swelling, chills, fever and right lumbago. Fifteen years ago, she received surgical exploration for right renal stones at another department of urology. A large, soft and round kidney was palpable from the right upper quadrant of abdomen to the right lower abdomen. The parenchyma of the right kidney was thinned and inside the kidney there was a huge amount of yellowish mucin. The histological diagnosis was mucin-producing cyst-adenoma (borderline malignancy) of the renal pelvis and ureter. Mucin-producing cystadenoma of the renal pelvis and ureter origin was very rare, and only 4 similar cases to our patient were so far reported.
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PMID:[Mucin-producing cystadenoma (borderline malignancy) of the renal pelvis and ureter. A case report]. 220 48

The authors studied the complications and other current problems of surgery of 212 cases subjected to Wertheim-Okabayashi operation. Of them 118 were cervix cancer in stage I and 90 in stage II and 4 were cancer of the uterus body in stage II. Two cases of operation death, 1 case of ureter injury and 1 case of large vessel injury occurred. Four ureteral and 1 late rectal-vaginal fistula developed. Difficulty of urination was observed in 49 cases. Those who consider surgical monotherapy best, hold the postoperative percutaneous irradiation necessary only in cases of metastases of the lymph nodes.
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PMID:[Current problems and complications of extensive uterine and pelvic lymph node excision for cancer of the uterus based on a 25-year case load]. 221 35

This study was undertaken to review the long-term results of multivisceral resection of locally advanced colorectal carcinoma. Between 1964 and 1980, 1042 patients underwent exploratory surgery for colorectal cancer. Of these, 58 patients (5.5%) underwent curative multivisceral resection for suspected contiguous invasion by the primary tumor. Follow-up was complete for all patients. The primary tumors were located in the rectum (38 patients), sigmoid (9 patients), left colon (6 patients), and right colon (5 patients). En bloc resection of other viscera included uterus, adnexa, bladder, vagina, small intestine, abdominal wall, liver, stomach, kidney, and ureter. The operative morbidity and mortality rates were 31% and 1.7%, respectively. Resection margins were free of tumor in 54 patients. In the four patients with tumor-positive resection margins, recurrence of disease was evident between 8 and 22 weeks after surgery (mean survival time, 8.2 months). Carcinomatous invasion of the resected contiguous organ was confirmed in 49 patients (84%). The mean survival time for patients without lymph node metastases was 100.7 months, but it was only 16.2 months (p less than 0.01) for patients with lymph node metastases. Actuarial 5-year disease-free survival rate for patients without lymph node metastases was 76% (36 of 47 patients). None of the patients (0 of 11) with lymph node metastases survived for 5 years. Three of 36 of the 5-year survivors experienced recurrence of disease before the seventh postoperative year; no cancer-related deaths occurred between 7 and 25 years. These data suggest that survival in locally advanced colorectal carcinoma is more dependent on lymph node status than on the extent of local invasion. Effective disease control associated with survival in the long term can be achieved by multivisceral resection.
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PMID:Long-term results of surgical resection of locally advanced colorectal carcinoma. 221 91

From March 1982 through July 1988, 76 men underwent nerve-sparing radical cystoprostatectomy for carcinoma of the bladder at our hospital. Of the 76 patients 2 (2.6%) had positive surgical margins (dome of the bladder and left ureter) and neither had positive margins at the site of nerve-sparing modifications. Of 3 patients (3.9%) who had local recurrence none had positive surgical margins. The 5-year actuarial local recurrence rate is 7.5%. Thirteen of 76 patients (17%) died of transitional cell carcinoma and 7 (9%) died of other causes, while 53 (70%) are alive without evidence of disease with a mean followup of 38.4 months. The 5-year actuarial survival rates are 64% over-all, 68% without disease and 78% disease-specific. Of the 42 evaluable men who underwent cystoprostatectomy alone 27 (64%) are potent, compared to 2 of the 12 men (17%) who also underwent urethrectomy. We conclude that the nerve-sparing modifications do not compromise cancer control, that local recurrence and survival rates are at least comparable to those achieved with standard radical cystoprostatectomy, and that it is possible to preserve potency in most men undergoing this procedure.
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PMID:Local recurrence and survival following nerve-sparing radical cystoprostatectomy. 223 85


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