OBJECTIVES In this study, we aimed to analyze the ureter stones that had been treated using rigid ureteroscopy and pneumatic lithotripsy without mechanically dilating the ureteral orifice. PATIENTS AND METHODS Records of 110 patients who had undergone rigid ureteroscopy and pneumatic lithotripsy due to ureteral stone between February 2005 and May 2011 were retrospectively analyzed. The locati...

The blind-ending bifid ureter is a rare congenital anomaly of urinary system. We presented one case of the blind-ending bifid ureter which originates from the middle third ureter. The embryogenesis and possible mechanisms are reviewed. Changing positions in projections during intravenous urography provides more information of the blindending branch. Intravenous urography is one of the best moda...

A case of hydronephrosis with a rare underlying cause in a 35 years old male is described. He reported with pain in the left lumbar region with a past history of left ureterolithotomy. The ultrasound and IVU studies were suggestive of left hydronephroureter. CT Scan showed left hydronephroureter with narrowing at the lower end of left ureter. Ureterorenoscopy (URS) confirmed polypoidal lesions ...

Aim of the work was an investigation of ureter wall perforation possibility by various types of mid-infrared radiations (from 2.01 μm (Tm:YAG) up to 2.94 μm (Er:YAG)) and exploration of the interaction basic characteristic for ureter surface (epithelium) and its deep structures (mesenchym). From results follow that CTH:YAG, Er:YAG, and CTE:YAG laser radiations accomplish a good wall ureter perf...

BACKGROUND A relationship has been suggested between kidney or ureter stones and the development of urinary tract cancers. In this study, a population-based cohort of patients hospitalized for kidney or ureter stones in Sweden was followed for up to 25 years to examine subsequent risks for developing renal cell, renal pelvis/ureter, or bladder cancer. METHODS Data from the national Swedish In...

Patients with an accessory kidney are characterized by an excessive number of kidneys. The ureter of the accessory kidney either drains separately into the bladder or merges with the ureter of the main kidney. In our case, interestingly, the ureter of the left main kidney drained directly into the accessory kidney and the ureter of the latter was the common drainage route for both. The drainage...

In ureter peristalsis, the orientation of the contracting smooth muscle cells is essential, yet current descriptions of orientation and composition of the smooth muscle layer in human as well as in rat ureter are inconsistent. The present study aims to improve quantification of smooth muscle orientation in rat ureters as a basis for mechanistic understanding of peristalsis. A crucial step in ou...

Dysfunction of the ureter often leads to urine flow impairment from the kidney to the bladder, causing dilation of the ureter and/or renal pelvis. Six1 is a crucial regulator of renal development: mutations in human SIX1 cause branchio-oto-renal (BOR) syndrome and Six1(-/-) mice exhibit renal agenesis, although the ureter is present. It remains unclear whether Six1 plays a role in regulating ur...

Background: Ileal ureter replacement is a selective technique for ureteral reconstruction without being limited by the defect length. This study aim to present the techniques, experiences, and outcomes related to ileal ureter replacement among patients in a multicenter in China. Methods: A multicenter retrospective study of patients with long ureteral defects who underwent ileal ureter replacem...