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Related to Hydronephrosis: hydroureter


Accumulation of urine in and distension of the renal pelvis and calyces due to obstructed outflow.



a disease characterized by progressive enlargement of the cavities of the kidneys, with subsequent anemia and the atrophy of renal tissue.

Hydronephrosis is the result of an impairment of urinary discharge from the renal pelvis (most often the dextral one). The disease is found most commonly in women between the ages of 20 and 40 and in children. Congenital hydronephroses develop when there are defects in the development of the urinary system; mechanical, when there is blockage of the renal pelvis or ureter by a calculus, tumor, or inflammatory cicatrix; dynamic, when there is damage to the neuromuscular apparatus of the renal pelvis and ureter; and traumatic, when there are wounds to the ureter or pressure on it from adhesions after a blunt injury. Disruption of the discharge of urine leads to distention of the renal pelvis and calyces and an increase in intrarenal pressure, as a result of which the blood vessels are constricted and the blood circulation in the kidney impaired. Atrophy of the renal parenchyma gradually develops. If treated in time, the organ may be restored. Usually hydronephrosis develops asymptomatically, but sometimes there are attacks of renal colic or dull pains in the region of the kidneys, blood in the urine (hematuria), and, when there is accompanying infection, pus in the urine (pyuria). Treatment is surgical.


Abramian, A. Ia. “Gidronefroz i gidroureter.” In Mnogotomnoe rukovodstvo po khirurgii, vol. 9. Edited by B. V. Petrovskii. Moscow, 1959.


References in periodicals archive ?
Cases with unilateral hydronephrosis and UPJ obstruction also exhibited dysplastic contralateral kidneys and developed anhydroamnios during the follow-up.
In this patient, sudden expansion was significant enough to cause ureteral obstruction and hydronephrosis.
In 2010 Mattias Carlstrom described the "Causal link between neonatal hydronephrosis and later development of hypertension.
Based on the sonographic findings, nine individuals were excluded for the following reasons: solitary cysts larger than 2 cm in diameter (four cases), hydronephrosis (two cases), unilateral kidney (two cases) and a hypoechoic kidney mass (one case).
The right hydronephrosis had resolved and he was asymptomatic at the time of this report.
The tot's condition, known as hydronephrosis, affects about one in every 300 people in one kidney.
The clinical research consisted of studying 125 children with congenital hydronephrosis caused by obstructive anomalies of pelviureteral segment and complicated by secondary pyelonephritis.
The most obvious and frequently reported causes involve urinary tract obstruction/trauma leading to hydronephrosis and urioma formation within the retroperitoneum.
Those who died had smaller lung capacities when they were examined in 1990 and had more evidence of severe hydronephrosis.
The reason for this vigilence is that in men, the large residual urine may be related to the prostate and ultimately cause hydronephrosis and kidney failure.
There were only two serious abnormalities noted, unilateral hydronephrosis and a calcified renal mass, and these were detected by the urogram.
Following approval, rare cases of postoperative dilatation of the upper urinary tract with or without hydronephrosis leading to temporary placement of a ureteric stent have been reported.