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

Uterus didelphys with double vagina and hemi-vaginal atresia is a rare syndrome of congenital anomalies. A 17-year-old girl had a right blind-ending ectopic ureter, the proximal end of which communicated with the ipsilateral uterine cervix of uterus didelphys. The patient presented with vaginal urinary incontinence after incision of the vaginal wall for right hemi-hematocolpometra. Following various examinations, the ipsilateral kidney was found to be absent. The ectopic ureter and communicating duct were resected, and the fistula was closed. The genesis of malformation of the female genitalia and urinary tract resulting in such a unique communication is discussed. The importance of preoperative meticulous examinations, including cysto-genitography, pelvic magnetic resonance imaging and panendoscopy with the patient under anesthesia, is emphasized.
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PMID:A case of unique communication between blind-ending ectopic ureter and ipsilateral hemi-hematocolpometra in uterus didelphys. 786 1

We report on a case of ureteral injury during laparoscopically radical hysterectomy to treat a patient with a stage IA2 carcinoma of the uterine cervix. The advantage of laparoscopically radical hysterectomy is the prevention of the identification and dissecting of the ureter from a vaginal approach, the main problem in the Schauta technique. However, ureteral injury may still occur while resecting the cardinal ligament without good visualization of the ureter during a vaginal procedure. Because the ureter was well identified and freed laparoscopically, a vaginal approach after uterine removal may be an option for treatment. Moreover, using the ureteral stent as a marker during a modified Schauta technique is helpful in the prevention of ureteral injury during laparoscopically assisted radical vaginal hysterectomy.
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PMID:Ureteral injury during laparoscopically assisted radical vaginal hysterectomy. 856 39

Eight ureter lesions of the ureter occurred among 100 consecutive patients undergoing radical hysterectomy for cancer of the uterine cervix. The management of this problem is discussed, and treatment guidelines for the most commonly seen lesions are proposed. It is concluded that a more liberal use of ureteric stents or catheters should be considered so as to reduce the number of ureteric lesions occurring in connection with radical hysterectomy. Urological assistance should be sought for urological lesions recognized during or after such operations.
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PMID:[Lesions of the ureter in radical hysterectomy for cervical cancer]. 868 72

An 80-year-old woman was referred to our hospital because of irregular genital bleeding. An abnormal mass was found in the uterine cervix, and diagnosed as non-Hodgkin's lymphoma, diffuse large B cell type. Soon after admission, the patient became anuric and was given a diagnosis of acute renal failure due to obstruction of the ureter. She was immediately placed on dose-reduced CHOP and radiotherapy of 15 Gy. As a result, not only did the malignant lymphoma go into remission, but diminished renal function was alleviated. Because malignant lymphoma of the uterus is extremely rare, it exact biocharacteristics are not well understood. We are unaware of any previous report concerning uterine lymphoma complicated by renal failure.
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PMID:[Primary non-Hodgkin's lymphoma of the uterine cervix complicated by acute renal failure due to ureter obstruction]. 969 77

Thrombomodulin (TM) is a surface glycoprotein reported to be expressed in a variety of tumors, including mesotheliomas, endothelial vascular tumors, squamous carcinomas, and various adenocarcinomas. This study evaluated TM expression in transitional cell carcinomas (TCCs) and determined whether immunostaining for TM has practical value in the diagnosis of TCCs. TM expression was observed in 96 of 106 primary tumors (bladder, 64/72; renal pelvis, 12/14; ureter, 3/3; prostate, 17/17) and in 21 of 23 metastatic TCCs. Among the adenocarcinomas, only 3 of 18 originating in the bladder, 7 of 46 in the lung, 4 of 21 in the breast, 2 of 24 in the ovary, and 2 of 4 in the pancreas expressed this marker. No staining was observed in the 22 renal cell carcinomas or the 35 adenocarcinomas of the prostate, 13 of the endometrium, or 12 of the colon. Nearly all squamous cell carcinomas (lung, 21/27; skin, 7/7; uterine cervix, 6/6; esophagus, 2/2; bladder, 2/2) reacted for TM. TM is a sensitive marker for TCC. TM immunostaining can assist in distinguishing this tumor from others, especially renal cell carcinomas and adenocarcinomas of the prostate, colon, and bladder, but it has no value in separating TCC from squamous cell carcinomas.
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PMID:Thrombomodulin expression in transitional cell carcinoma. 972 15

Different reconstructive operations were performed in 20 patients for intraoperative traumas of the urinary tract. 4 patients had injured ureter and urinary bladder. The damage was done in the course of obstetric operations (cesarean section, uterine extirpation). In 12 cases the ureter was injured in uterine extirpation for cancer (n = 4), myoma (n = 4), prolapse of the uterus, (n = 1), extirpation of uterine cervix stump (n = 1), ureteral electrocoagulation (n = 1) and adnexectomy (n = 1). In 4 cases ligation of the ureter complicated surgical interventions for cancer of the sigmoid colon (n = 1) and rectum (n = 1), diverticulosis of the colon (n = 1) and portal cirrhosis of the liver with evident cirrhosis (n = 1). Surgical policy in the treatment of intraoperative urinary tract injuries was organ-saving. Only in 3 patients with severe acute pyelonephritis surgery was two-staged with prior nephrostomy. In the rest cases primary reconstructive operations were made. Two patients with bilateral injury of the ureters after uterine extirpation have undergone transabdominal bilateral reimplantation of the ureters by Boari in Gregoir's modification. Reconstruction of pelvic ureter was often made by using a urinary bladder graft (Boari's technique). In 1 female patient with extensive vesicovaginal fistula resultant in detruzor corrugation sigmocystoplasty was made with a good result. Serious complications after the reconstruction were absent. Urinary fistulas formed in 4 cases. In 3 of them they closed without surgical intervention. In 1 patient, to close urinary fistula complicating ureterocystoanastomosis Boari's operation was conducted with a favourable outcome. Reconstructive operations saved the kidney function.
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PMID:[Reconstructive-reparative operations in injuries of the urinary tract in obstetrical, gynecologic and abdominal surgery]. 1257 73

This report reviews the literature on the genotoxicity of mainstream tobacco smoke and cigarette smoke condensate (CSC) published since 1985. CSC is genotoxic in nearly all systems in which it has been tested, with the base/neutral fractions being the most mutagenic. In rodents, cigarette smoke induces sister chromatid exchanges (SCEs) and micronuclei in bone marrow and lung cells. In humans, newborns of smoking mothers have elevated frequencies of HPRT mutants, translocations, and DNA strand breaks. Sperm of smokers have elevated frequencies of aneuploidy, DNA adducts, strand breaks, and oxidative damage. Smoking also produces mutagenic cervical mucus, micronuclei in cervical epithelial cells, and genotoxic amniotic fluid. These data suggest that tobacco smoke may be a human germ-cell mutagen. Tobacco smoke produces mutagenic urine, and it is a human somatic-cell mutagen, producing HPRT mutations, SCEs, microsatellite instability, and DNA damage in a variety of tissues. Of the 11 organ sites at which smoking causes cancer in humans, smoking-associated genotoxic effects have been found in all eight that have been examined thus far: oral/nasal, esophagus, pharynx/larynx, lung, pancreas, myeoloid organs, bladder/ureter, uterine cervix. Lung tumors of smokers contain a high frequency and unique spectrum of TP53 and KRAS mutations, reflective of the PAH (and possibly other) compounds in the smoke. Further studies are needed to clarify the modulation of the genotoxicity of tobacco smoke by various genetic polymorphisms. These data support a model of tobacco smoke carcinogenesis in which the components of tobacco smoke induce mutations that accumulate in a field of tissue that, through selection, drive the carcinogenic process. Most of the data reviewed here are from studies of human smokers. Thus, their relevance to humans cannot be denied, and their explanatory powers not easily dismissed. Tobacco smoke is now the most extreme example of a systemic human mutagen.
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PMID:Genotoxicity of tobacco smoke and tobacco smoke condensate: a review. 1557 90

Various reconstructive surgeries were performed in 21 patients because of intraoperative injuries of the urinary tracts. In 4 patients trauma of the ureter and urinary bladder was associated with obstetric operations (Cesarean section, hysterectomy). In 13 cases injury of the ureter was the consequence of hysterectomy due to cancer (4), hysteromyoma (4), prolapses of the uterus (1), extirpation of the stump of the uterine cervix (1), electrocoagulation of the ureter (2) and adnexectomy (1). In 4 patients ligation of the ureter complicated surgery for cancer of the sigmoid colon (1) and rectum (1), diverticular disease of the colon (1) and portal hepatic cirrhosis with severe ascites. Surgical policy was organ-saving. Only in 3 patients with severe acute pyelonephritis surgical treatment was performed in two stages with preliminary nephrostomy. In the rest cases primary reconstructive surgeries were used. Reconstructive surgeries saved the kidney as a functioning organ.
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PMID:[Long-term results of reconstructive surgeries in iatrogenic injury of the urinary tracts]. 1594 Jan 80

Tobacco use is universally recognized as the foremost preventable cause of cancer in the United States and globally and is responsible for 30% of all cancer-related deaths in the United States. Tobacco use, including exposure to secondhand smoke has been implicated as a causal or contributory agent in an ever-expanding list of cancers, including lung, oral cavity and pharynx, pancreas, liver, kidney, ureter, urinary bladder, uterine cervix, and myeloid leukemia. In addition to and independent of the etiologic effects of tobacco carcinogens in numerous cancers, there is a growing literature on the direct and indirect effects of smoking on treatment efficacy (short-term and long-term outcomes), toxicity and morbidity, quality of life (QOL), recurrence, second primary tumors (SPT), and survival time as summarized below. Oncology health professionals have called for increased advocacy for tobacco control. Despite the critical relevance of smoking to cancer outcomes, most oncology clinical trials do not collect data on smoking history and status unless the malignancy is widely acknowledged as smoking related (e.g., lung or head and neck cancer). Usually, these data are collected only at trial registration. Changes in smoking status during treatment or follow-up are monitored in very few trials and are infrequently reported in sample descriptions or included in analysis plans as a potential moderator of outcomes. Based on mounting evidence that tobacco use affects cancer treatment outcomes and survival, we recommend that smoking history and status be systematically collected as core data in all oncology clinical trials: at diagnosis, at trial registration, and throughout treatment and follow-up to long-term survival or death. We feel that the inclusion and analysis of such data in clinical trials will add important information to the interpretation of outcomes and the development of scientific knowledge in this area. Smoking status has been called another "vital sign" because of its relevance to a patient's immediate medical condition. We explain the critical value of knowing the smoking status of every patient with cancer at every visit by providing a brief overview of the following research findings: (a) the effects of tobacco use on cancer treatment and outcome; (b) recent findings on the role of nicotine in malignant processes; (c) some unexpected results concerning tobacco status, treatment, and disease outcome; and (d) identifying key questions that remain to be addressed. We provide a suggested set of items for inclusion in clinical trial data sets that also are useful in clinical practice.
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PMID:Smoking, the missing drug interaction in clinical trials: ignoring the obvious. 1621 6

Despite the reports of a number of leading institutions concerning the use of primary exenteration, there are differences in regard to definition, indications, and interpretation of results of this treatment approach to cervical cancer. In this paper we present our own experience with 41 cervical cancer patients treated with primary exenteration at St. Stephen Hospital Budapest. We explore some important unsettled aspects (definition, indications, and quality of life consequences) of this treatment modality in view of our own experience and the literature. Between January 1993 and June 2006, 2540 invasive cervical cancer patients were seen at the gynecologic oncology service of the St. Stephens Hospital Budapest. Two hundred twelve (8%) of these patients were surgically explored with the plan of an exenterative surgery. Exenteration was the primary treatment in 41 (25%) of 166 completed exenterations; these 41 cases included 2 cases of supralevator total exenteration, 9 cases of supralevator anterior exenteration, and 30 cases of partial supralevator anterior exenteration. In the 2 total exenteration patients, anal function was restored with a low rectal anastomosis, with a temporary defunctioning colostomy in 1 patient. Urethral function was restored in 9 out of 11 supralevator exenteration cases with the Budapest pouch bladder replacement technique. In the remaining 2 cases, a Bricker conduit was used for urinary diversion. There was no operation-related mortality in this cohort of patients. An external fecal or urinary stoma was avoided in 38 (93%) out of the 41 primary exenteration patients; in 1 patient a temporary defunctioning colostomy was used; and in 2 patients a permanent ileal conduit was created. In 9 patients (22%), complications (ileus and peritonitis, occlusion of the femoral artery, stricture of the implanted ureter, and postoperative ureterovaginal fistula) necessitated surgical intervention. A quality of life study revealed the need for prolonged self-catheterization, partial (mainly night time) incontinence, and lymphedema in 7 patients. We consider and suggest that an en bloc resection of part(s) of the urinary bladder and/or the rectum with the uterine cervix should be considered an exenteration (partial exenteration). A 50% survival rate of a select group of stage IVA cervical cancer patients treated with primary exenteration can be considered significant, but cannot be considered superior to that of chemoradiation therapy. The same applies when considering treatment-related mortality and complications that require operative interventions. Low rectal anastomosis and orthotopic bladder replacement with a relative low risk of fistula formation in non-irradiated patients constitute a strong quality of life argument in favor of primary exenteration in a select group of stage IVA cervical cancer patients.
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PMID:Primary pelvic exenteration in cervical cancer patients. 1877 58


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