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

The aim of the study was to clarify the role of hypoxia of detrusor as a component of aging in establishment of urination disorders in patients with benign prostatic hyperplasia (BPH). A total of 54 patients were examined. Whether the capacity of detrusor to absorb oxygen was affected or not was judged by the difference in oxygen tension and acid-base balance in blood samples obtained intraoperatively from a radialis, v. mediana cubiti, v. vesicalis in 30 patients (experimental group) versus control values (5 females operated for stenosis of the distal ureter, ureterovaginal fistulas). The findings provided evidence for marked hypoxia of the detrusor diminishing reservoir function of the bladder and promoting urination disorders. A course of hyperbaric oxygenation given to 17 BPH patients has improved the capacity of the bladder for urine accumulation, reduced pollakiuria, especially at night. This supports involvement of detrusor hypoxia in pathogenesis of urination disorders in BPH patients.
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PMID:[The role of detrusor hypoxia in the pathogenesis of urination disorders in patients with benign prostatic hyperplasia]. 903 7

We treated 17 patients with severe endometriosis involving the genitourinary tract. Eight women presented with persistent right or left flank pain, two presented with known ureteral obstruction, and five presented with urinary frequency and burning, and/or hematuria with their periods. Presented are the results of laparoscopic management in these patients. We performed segmental bladder resection in six patients and ureteral resection and reanastomosis in two. Nine additional patients underwent partial resection of the ureteral wall for complete removal of endometrial implants. The ureter was repaired with 4-0 PDS in seven patients and a stent was left in place for 4 to 6 weeks. Two required only a stent due to the small size of the ureterotomy. The postoperative course of these patients was uneventful. Following ureteral repair/reanastomosis, all women underwent an intravenous pyelogram at follow-up, and normal bilateral excretion was demonstrated. Cystoscopy revealed no abnormal findings in five patients who had undergone partial bladder resection. All patients reported significant pain relief or complete resolution of symptoms. Operative laparoscopy can be safely used to achieve relief from severe symptomatic endometriosis of the genitourinary tract.
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PMID:Laparoscopic Management of Genitourinary Endometriosis 907 28

We report a case of a 24-year-old male patient with cystic dilatation of the seminal vesicle associated with renal agenesis and megaureter. This patient complained of left renal colic with pollakiuria. We performed intravenous urography and ultrasound showed a cyst in the seminal vesicle associated with left megaureter and right renal agenesis. Treatment consisted of resection of the cyst and reimplantation of the left ureter into the bladder. No postoperative complications were observed. This association is rare and can be explained by the common embryological origin of the seminal vesicle and kidney and ureter. Its diagnosis is now facilitated by ultrasound and CT. The treatment of this tumor is surgical only when the lesions are responsible for clinical symptoms.
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PMID:[Seminal vesicle cyst associated with homolateral renal agenesis and megaureter. Apropos of a case]. 924 56

A 63-year old man presented with urinary frequency and urge. An IVU showed a tumour in the lower right ureter. Partial ureterectomy was done with a uretero-ureterostomy. Pathological investigation showed an inverted papilloma. Inverted papilloma of the ureter should always be considered in the differential diagnosis before major surgery is done. There is an association between inverted papilloma and urothelial carcinoma. Our patient developed an invasive bladder tumour 6 years after the operation on the inverted papilloma.
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PMID:Inverted papilloma of the ureter with subsequent invasive bladder cancer. 949 98

Nephrogenic adenoma is a benign epithelial tumour localised at the level of the urothelium and caused by metaplasia of the urothelium following prolonged aggressive stimulation over time, for example trauma or chronic urinary infection. Even a diverticulum, in whatever site it is localised, is subject to an increased risk of neoplastic transformation of the urothelium. It above all affects male subjects, with a male/female ratio of 3:1 over the age of 20, which is inverted in younger subjects. The most frequently affected site is the vescical trigonum in 72% of cases, followed by the pelvic tract of the ureter (19%) and urethra. The majority of patients is asymptomatic or reports aspecific symptoms: the most frequent picture is macroscopic hematuria, owing to the rich vascularisation of the tumour. This is followed by irritative type signs such as pollakiuria, strangury, posturination dripping and sometimes painful tenesmus. Differential diagnosis is necessary for pale cell adenocarcinoma, parauretral cysts and Gartner duct's cysts which may be associated with urethral diverticulum, localised on the bottom, and rarely symptomatic. Diagnosis is based on retrograde urethrography, cystography and endoscopic tests, with biopsy if necessary. NMR provides further details regarding the site, localisation and benign or malignant nature of the lesion. Treatment is surgical: endoscopic (transurethral) if the dimension are limited, or traditional using a suprapubic or transvaginal route if it is associated with diverticulum. Prognosis is discrete and depends on the timeliness with which the factors predisposing metaplasia are eliminated.
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PMID:[Nephrogenic adenoma arising from an urethral diverticulum in a female. Report of a case and review of the literature]. 1022 60

Four dogs with ureteral fibroepithelial polyps, ranging from 9-12 years of age, are presented in this report. The patients presented with urinary incontinence, urinary tract infection, and/or polydypsia and pollakiuria. All dogs were intact at the time of diagnosis or for the majority of their lives and three were male. Various diagnostic procedures were performed including ultrasonography, contrast radiography, and nuclear scintigraphy. Not all procedures were performed in all patients. Findings included ureteral dilation proximal to the level of an intraluminal mass and ipsilateral hydronephrosis. Unilateral ureteronephrectomy was performed in three dogs with masses in the proximal ureter; ureteral resection and anastamosis was performed in the remaining patient with a mass located in the distal ureter. The same pathologist (RAP) reviewed all four lesions. The lesions appeared polypoid and were attached to the ureteral wall by a thin stalk. Histopathologically, they contained a superficial layer of well-differentiated transitional epithelial cells overlying a prominent fibrovascular stroma with a mild (three dogs) or marked (one dog) degree of lymphoplasmacytic inflammation. This disease may represent a benign neoplasm or a chronic inflammatory reaction and has a good prognosis with surgical removal. Its histopathological characteristics, higher incidence in males, and location more commonly within the upper third of the ureter is remarkably similar to the disease in humans.
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PMID:Ureteral fibroepithelial polyps in four dogs. 1293 61

In September 2003, a 58-year-old woman complained of bladder irritation and urinary frequency. She was admitted to a nearby hospital, and an evaluation was performed. Urine cytology revealed a class V, and a tumor was detected in the lower left ureter with mild hydroneprhosis of the left kidney. We performed a left ureteronephrectomy with partial cystectomy in April 2004. The pathological diagnosis was clear cell carcinoma with small foci of conventional urothelial carcinoma of the left ureter (pT3pN0, G3 > G2, INFgamma). And now she lives well without recurrence in August 2005. This is the first case report of clear cell carcinoma of the ureter in Japan.
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PMID:[Primary clear cell carcinoma of the ureter: a case report]. 1661 64

Low-grade fibromyxoid sarcoma is an uncommon, deceptively bland mesenchymal neoplasm that typically occurs in the deep soft tissues of the proximal extremities of young to middle-aged patients. Intra-abdominal low-grade fibromyxoid sarcomas are distinctly rare. We describe the first reported example of this sarcoma involving the ovary. The 42-year-old patient presented with progressing abdominal pain and urinary frequency. Computed tomographic imaging of the abdomen and pelvis showed a 14-cm left-sided pelvic mass. The patient underwent surgical resection and, intraoperatively, a left ovarian mass was identified that extended to both the left hypogastric artery and the left ureter. The resected specimen consisted of a 17-cm tan, fleshy mass containing grossly recognizable nodules of gelatinous, myxoid tissue and a small rim of normal ovary. Microscopic examination of the neoplasm revealed a cytologically bland spindle cell proliferation set in a collagenized stroma that abruptly transitioned to nodules of a myxoid stroma with a well-formed capillary vasculature, features characteristic of low-grade fibromyxoid sarcoma. On the basis of the diagnosis, the patient was clinically staged as a retroperitoneal sarcoma with secondary ovarian involvement. The patient has stable residual disease 11 months postoperatively. This case adds to the literature of intra-abdominal low-grade fibromyxoid sarcoma and expands the list of malignant mesenchymal neoplasms that may involve the ovary.
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PMID:Low-grade fibromyxoid sarcoma presenting clinically as a primary ovarian neoplasm: a case report. 1741 85

A 70-year-old male who complained of urinary frequency and a feeling of incomplete emptying was admitted to our hospital. Imaging findings showed dilation of the left renal pelvis and ureter. He was diagnosed as having urinary tuberculosis because a positive urinary Mycobacterium tuberculosis result was obtained by polymerase chain reaction (PCR). He was treated with a combination of the antituberculosis agents isoniazid, rifampicin, pyrazinamide and ethambutol for six months. The symptoms and pyuria disappeared and M. tuberculosis was negative by PCR; however, Mycobacterium fortuitum was isolated by culture. Due to asymptomatic urinary tract infection by the multidrug resistant M. fortuitum, he was followed up with observation. Currently, he remains unchanged with regard to symptoms and imaging examination. M. fortuitum is a nontubercular mycobacterium, and clinical relevance between urinary tract infection and M. fortuitum has rarely emerged. However, we should be aware that nontubercular mycobacteria such as M. fortuitum can infect the urinary tract, especially in immunocompromised patients.
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PMID:[Case of urinary mycobacterium fortuitum in a patient with urinary tract tuberculosis posttreatment]. 1906 30

In order to assess clinico-radiological findings of urinary diversion, five adult healthy mongrel dogs of both sexes weighing between 25-40 kg and average age of 1.5 years, underwent continent urinary diversion surgery. In this approach fifteen centimeters of the descending colon with preservation of its mesenteric vessels was resected and this segment longitudinally was opened and flushed with an aqueous solution of povidin iodine 0.1% and the remaining colon re-anastomosed by seromuscular sutures. Then two ends of transected ureters were drawn into the resected colon by mosquito hemostatic forceps and simple interrupted sutures were placed between the ureter and the colonic mucosa for uretero-colonic anastomosis. The uretero-colonic part in a cap form transplanted to partially cystectomized bladder with one layer of cushing pattern suture. All animals survived after the operation. Clinically, all dogs were dull and depressed and passed blood tinged urine for first few postoperative days. There was pollakiuria in all of animals distinctly, but urinary incontinence was not observed. At the first few postoperative days, anorexia, nausea and vomiting were seen in three dogs. In all animals, polydipsia were seen and continued until the end of study. Intravenous urograms showed hydronephrosis and upper urinary tracts dilatation in all animals at 25th day but there were signs of improvement at 45th day distinctly. Unilateral ureteral obstruction was observed in two dogs. In regards to clinico-radiological findings can be concluded that this operation has some distinct sequela that some of them may be seen in radiographic assessments.
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PMID:Clinical and radiological findings following continent urinary diversion with colonic segment in dog. 1909 Jan 4


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