megaureter


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megaureter

 
congenital dilatation of the ureter; it may be either a primary condition or secondary to something else. Called also megaloureter.

u·re·ter·ec·ta·si·a

(yū-rē'tĕr-ek-tā'zē-ă),
Dilation of a ureter.
[ureter + G. ektasis, a stretching out]

megaureter

/mega·u·re·ter/ (meg″ah-u-re´ter) congenital ureteral dilatation, which may be either primary or secondary to something else.

megaureter

megaureter

A condition characterised by dilation of the ureter, which is more common in males, often bilateral and typically associated with other urogenital abnormalities. Therapy usually entails tunnelled reimplantation to prevent reflux.

megaureter

 A large ureter of any etiology, divided by some urologists into reflux megaureter, obstructed ureter and non-reflux or idiopathic megaureter

meg·a·lo·u·re·ter

, megaureter (megă-lō-yūrĕ-tĕr, megă-yūrĕ-tĕr)
An enlarged dilated ureter.

megaureter

Considerable widening of the tube carrying urine down from the kidney to the bladder (the ureter). This usually results from obstruction to outflow in the lower part of the ureter or from reflux of urine upwards from the bladder.

megaureter

dilatation of the ureter.
References in periodicals archive ?
A refluxing and/or obstructive megaureter features a satisfactory amount of tissue for bladder augmentation.
The etiology of hydroureteronephrosis was neurogenic bladder secondary to meningomyelocele in five patients, a posterior urethral valve (PUV) in four patients, an obstructive megaureter in three patients and ectopic obstructive ureterocele in two patients.
10), (11) The blood supply to the megaureter should be preserved for a successful outcome.
The major drawback of using the ureter in augmentation cystoplasty is the paucity of patients who have both a megaureter and a nonfunctioning kidney.
In all 18 cases, a diagnosis was based on intravenous urography and endoscopic exploration using a diuretic renogram with MAG3 and cystography in the 5 megaureter cases.
In the only megaureter case, an increase in the grade of hydronephrosis and in pain occurred at 24 months after endoscopic treatment.
The occurrence of reflux at 12 months after treatment in a patient who presented with an obstructive megaureter was similar to the findings in the literature and did not have any clinical impact.
Oblique ureteral meatotomy performed with cold cutting using endoscopic scissors has been demonstrated to be useful to treat obstructive pathology of the ureterovesical junction (obstructive megaureter, ureterocele, and stenosis of the ureteral meatus) with a high success rate and a low index of complications.
Signs in primary megaureter are fusiform dilatation of the ureter proximal to the tapered distal extravesical segment.
The current belief is that primary obstructive megaureter presents primarily in adults when the congenital abnormality does not cause symptoms or illness and is not seen via an imaging study performed as children.
Delakas and colleagues described an adult patient with primary megaureter who developed a 12-cm urinary calcification within the dilated portion of the ureter.
Case 2 is unusual in that the patient developed renal calculi without ureteral calculi in the presence of an ipsilateral distal ureteral megaureter.