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 ?
Extraperitoneal laparoscopic pyeloplasty for primary and secondary ureteropelvic junction obstruction.
Minimally-invasive correction of ureteropelvic junction obstruction: do retrograde endo-incision techniques still have a role in the era of laparoscopic pyeloplasty Ther Adv Urol 2010; 1:227-34
2) Therefore, assessing the sensitivity, specificity, and the stage and grade concordances of endoscopic biopsy are important toward determining the proper treatment for patients with urothelial carcinoma of the ureter, renal pelvis, or ureteropelvic junction.
Preoperative assessment of ureteropelvic junction obstruction with endoluminal sonography and helical CT.
But in our case, despite the intrathoracic displacement of the kidney, the renal pedicle and ureteropelvic junction were normal.
In one case with ureteropelvic junction (UPJ) stenosis, although no jet flow was detected with Doppler US, contrast passage was seen through that ureter on IVP with flank massage.
During fluoroscopy, arterial pulsations were observed at the ureteropelvic junction (UPJ) of the lower moiety, which suggested that a crossing vessel was contributing to the UPJ obstruction.
Ureteropelvic junction anomalies: Congenital UPJ problems in children.
9-13) However, to our knowledge, there has not been a previous report of successful endoscopic ureteral realignment following avulsion of the ureter at the level of the ureteropelvic junction.
1) GH usually occurs secondarily due to ureteropelvic junction obstruction (UPJ).
The tumors were located in the renal pelvis (n = 5), ureter (n = 4), and ureteropelvic junction (n = 2).