ureteropelvic junction


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Related to ureteropelvic junction: hydronephrosis

junction

 [jungk´shun]
a place of meeting or coming together. adj., adj junc´tional.
atrioventricular junction in the conduction system of the heart, the junction between the atrioventricular node and the nonbranching portion of the bundle of His.
cementoenamel junction the line at which the cementum covering the root of a tooth meets the enamel covering the crown.
gap junction a narrowed portion of the intercellular space, containing channels linking adjacent cells and through which can pass ions, most sugars, amino acids, nucleotides, vitamins, hormones, and cyclic AMP. In electrically excitable tissues the gap junctions serve to transmit electrical impulses via ionic currents and are known as electrotonic synapses; they are present in such tissues as myocardial tissue.
myoneural junction (neuromuscular junction) the site of junction of a motor nerve fiber and a skeletal muscle fiber that it innervates. The discoid expansion of the terminal branch of the axon forms the motor end plate, the neurotransmitter that diffuses across the synapse is acetylcholine.
sclerocorneal junction limbus (def. 2).
ureteropelvic junction the area where the renal pelvis meets the ureter.

u·re·ter·o·pel·vic junc·tion (UPJ),

site of origin of the ureter from the renal pelvis, a common location for congenital or acquired obstruction.
References in periodicals archive ?
Tekgul, "Relation between radionuclide imaging and pathologic findings of ureteropelvic junction obstruction in neonatal hydronephrosis," Scandinavian Journal of Urology, vol.
Retrospective comparison of retroperitoneal laparoscopic versus open dismembered pyeloplasty for ureteropelvic junction obstruction.
Percutaneous endopyelotomy in the treatment of ureteropelvic junction obstruction.
In this study, similar to the previous investigations, ureteropelvic junction obstruction was the main cause of hydronephrosis (14); this condition was found in 28.6% of patients (10,13,22), followed by VUR (26.4%), posterior urethral valves (11.5%), and, less often, other abnormalities.
The median biopsysample size was 0.3 cm (mean, 0.7 cm; range, 0.1-4.0 cm) with a median size of 0.3 cm for the ureter (mean, 0.7 cm; range, 0.1-4.0 cm), 0.2 cm for the renal pelvis (mean, 0.5 cm; range, 0.1-3.0 cm), and 0.7 cm for the ureteropelvic junction (mean, 0.8 cm; range, 0.3-1.3 cm) (P = .10).
Alberti, "Congenital ureteropelvic junction obstruction: physiopathology, decoupling of tout court pelvic dilatation-obstruction semantic connection, biomarkers to predict renal damage evolution," European Review for Medical and Pharmacological Sciences, vol.
Multidetector computed tomography arteriography in the preoperative assessment of patients with ureteropelvic junction obstruction.
Ureteropelvic junction disruption secondary to blunt trauma: Excretory phase imaging (delayed films) should help prevent a missed diagnosis.
It causes multifocal infections and, sometimes, obstructive, noninfective granulomas in the gastric outlet and ureteropelvic junction.
Hydronephrosis, owing to ureteropelvic junction obstruction, is the most common cause of an abdominal mass in a newborn (Diamond & Gosalbez, 1998; Tanagho & McAninch, 1992).
Ureteropelvic junction obstruction (UPJO) is the most common congenital cause of upper urinary tract obstructon resulting in progressive dilatation of the renal collecting system (1).
Due to accompanying anatomical disorders, one-third of patients have renal stones or hydronephrosis due to stricture of the ureteropelvic junction [5, 6].