Retained ureteral stents in patients lost to follow-up present a challenge to urologists. Patients may present with recurrent flank pain, pyelonephritis, stent migration or encrustation, and ureteral obstruction, with resultant renal failure. Rarely, a long-indwelling period may result in stent fragmentation. Herein, we present a case of a fractured retained ureteral stent noted in a patient lo...

Ureteral perforation is a rare complication of abdominal infection, especially in a patient with human immunodeficiency virus (HIV) infection. We reported a case of ureteral perforation caused by a secondary amebiasis in a patient with acquired immunodeficiency syndrome (AIDS). Following bowel perforation and immunocompromised conditions, secondary right ureteral perforation was not easily to b...

Lymphoma may affect the ureter in cases of retroperitoneal involvement. We present a case of an adolescent male found to have non-Hodgkin lymphoma initially presenting as ureteral stricture evident on imaging. He was treated and responded to multiagent chemotherapy with resolution of both the lymphoma and the ureteral stricture. Although rare, non-Hodgkin lymphoma should be included in the diff...

PURPOSE Precise needle puncture of the renal collecting system is an essential but challenging step for successful percutaneous nephrolithotomy. We evaluated the efficiency of a new real-time electromagnetic tracking system for in vivo kidney puncture. MATERIALS AND METHODS Six anesthetized female pigs underwent ureterorenoscopy to place a catheter with an electromagnetic tracking sensor into...

Intraoperative frozen section (FS) evaluation of ureteral and urethral margins is frequently requested during radical cystoprostatectomy in patients with bladder urothelial carcinoma. However, it is still controversial whether intraoperative FSs of ureteral and urethral margins are necessary in all patients with cystoprostatectomy or a risk-based assessment with limited to the high risk patient...

introduction: the aim of this study is to compare holmium laser (ll) with pneumatic lithoclast (pl) in patients with upper ureteral stones and their ability to destruct the stones and making the patient stone free. we also compare the duration of these procedures and their complications, such as urosepsis, perforation, and pushing the stone backward. methods: this has been a clinical randomized...

Endometriosis is the leading cause of female pelvic pain and infertility and affects approximately 10% of women. Lesions involve the urinary tract in up to 6% of cases with ureteral involvement in a smaller subset of .08% to 1%. Multiple authors describe open and laparoscopic approaches to management of ureteral endometriosis; however, this report describes 2 cases of ureteral obstruction secon...

Abstract Laparoscopy succeed in overcoming technical difficulties and poor outcome of traditional open ureteroureteral distal anastomosis. A technique for laparoscopic repair of injury involving the distal ureter has been successfully developed. Introduction Injury to the ureter occurs in 0.1% to 1.5% of pelvic surgeries (Thomson, 1997; Saidi MH and al, 1996). Frequency is increasing as a resul...

KUBO, T., SASAKI, S., NUMASATO, S., TAKAHASHI, S. and AKASAKA, T. Changes of the Ureteral Movement in Diuretic Condition and after Ureteral Surgery. Tohoku J. exp. Med., 1977, 123 (1), 9-22 An extraluminal ureteral bipolar needle "indwelling" electrode with recording wire was devised to study the ureteral function, and daily recording of the ureteral myogram in human and experimental animal has...