junction

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Related to ureteropelvic junction: hydronephrosis

junction

1. Electronics
a. a contact between two different metals or other materials
b. a transition region between regions of differing electrical properties in a semiconductor
2. a connection between two or more conductors or sections of transmission lines

junction

[′jəŋk·shən]
(civil engineering)
A point of intersection of roads or highways, especially where one terminates.
(electricity)
(electronics)
A region of transition between two different semiconducting regions in a semiconductor device, such as a pn junction, or between a metal and a semiconductor.
(electromagnetism)
A fitting used to join a branch waveguide at an angle to a main waveguide, as in a tee junction. Also known as waveguide junction.

junction

The point at which two elements make contact. In a transistor, a junction is the point where an N-type material makes contact with a P-type material.
References in periodicals archive ?
Frimberger, "Operative Versus Nonoperative Management of Ureteropelvic Junction Obstruction in Children," Urology, vol.
With shorter hospital stay and better cosmetic results, laparoscopic dismembered pyeloplasty has the potential to replace open surgery and, provided there is availability of expertise, it should be considered the first option for the treatment of ureteropelvic junction obstruction.
Percutaneous surgery for ureteropelvic junction obstruction (endopyelotomy): Technique and early results.
In a study of 213 children with mild to moderate hydronephrosis, there was a 39% significantly obstructive uropathy (ureteropelvic junction obstruction, vesicoureteral stenosis, and posterior urethral valves) (11).
Wei, "Contemporary trends in surgical correction of pediatric ureteropelvic junction obstruction: Data from the nationwide inpatient sample," Journal of Urology, vol.
Aceto et al., "Urinary epidermal growth factor, monocyte chemotactic protein-1, and [beta]2-microglobulin in children with ureteropelvic junction obstruction," Journal of Pediatric Surgery, vol.
Clinical indication for endoscopic biopsy included bladder tumor (n = 36), ureteral tumor (n = 21), nephrolithiasis (n = 13), renal tumor (n = 13), hydronephrosis (n = 12), hematuria (n = 11), ureteropelvic junction obstruction (n = 4), ureteral stricture (n = 2), and ureteral obstruction (n = 2), with a few cases in which an indication was not provided (n = 4).
See et al., "Candidate urinary biomarker discovery in ureteropelvic junction obstruction: a proteomic approach," Journal of Urology, vol.
Vascular anatomy at the ureteropelvic junction. Urol Clin North Am 1998; 25: 251-258.
Following diagnosis and successful treatment of the UTI, the doctor may order tests to detect abnormalities such as vesicoureteral reflux (backflow of urine from bladder to ureter and/or kidneys), ureteropelvic junction blockage (thinning or blockage of the junction of ureter and kidney), ureterovesicular junction blockage (blockage of the junction of ureter and bladder), and urethral blockage.
Bilateral traumatic lumbar hernias with injuries of the right renal pelvis and ureteropelvic junction (UPJ)
Renal ultrasound, for example, detected a left ectopic ureter with a right ureteropelvic junction obstruction in a duplicated system bilaterally.