Duplex renal collecting system
Updates to Case Attributes
The most common ureteric anomaly is that of ureter number, such as a duplex renal collecting system. The renal parenchyma may be divided into upper and lower components by a septum of Bertin, which is associated with a bifid collecting system and two renal pelvicespelvises.
The double ureters may join proximal or distal to the ureteropelvic junction, doing so in the latter case with a 'Y-configuration'. In complete duplication, the upper moiety ureter has a tendency to insert lower (i.e ectopically medially and below) the normal ureteric orifice. The lower moiety inserts orthopically,orthotopically but tends to reflux (Weigert-Meyer law).
A voidingVoiding cystourethrogram (VCUG) or CT intravenous urogram/ pyelogram (CT IVU/IVP) will adequately visualize these systems, their anatomical relations, and any complications such as focal or diffuse hydronephrosis, urine reflux, distal ureteric stricturing and ureterocele formation.
-<p>The most common ureteric anomaly is that of ureter number, such as a <a href="/articles/duplex-collecting-system">duplex renal collecting system</a>. The renal parenchyma may be divided into upper and lower components by a septum of Bertin, which is associated with a bifid collecting system and two renal pelvices. </p><p>The double ureters may join proximal or distal to the ureteropelvic junction, doing so in the latter case with a 'Y-configuration'. In complete duplication, the upper moiety ureter has a tendency to insert lower (i.e ectopically medially and below) the normal ureteric orifice. The lower moiety inserts orthopically, but tends to reflux (<a title="Meyer Weigert rule" href="/articles/weigert-meyer-law">meyer weigert rule</a>).</p><p>A voiding cystourethrogram (VCUG) or CT intravenous urogram/ pyelogram (CT IVU/IVP) will adequately visualize these systems, their anatomical relations, and any complications such as focal or diffuse hydronephrosis, urine reflux, distal ureteric stricturing and ureterocele formation.</p>- +<p>The most common ureteric anomaly is that of ureter number, such as a <a href="/articles/duplex-collecting-system">duplex renal collecting system</a>. The renal parenchyma may be divided into upper and lower components by a septum of Bertin, which is associated with a bifid collecting system and two renal pelvises. </p><p>The double ureters may join proximal or distal to the ureteropelvic junction, doing so in the latter case with a 'Y-configuration'. In complete duplication, the upper moiety ureter has a tendency to insert lower (i.e ectopically medially and below) the normal ureteric orifice. The lower moiety inserts orthotopically but tends to reflux (<a title="Weigert-Meyer law" href="/articles/weigert-meyer-law">Weigert-Meyer law</a>).</p><p>Voiding cystourethrogram (VCUG) or CT intravenous urogram/ pyelogram (CT IVU/IVP) will adequately visualize these systems, their anatomical relations, and any complications such as focal or diffuse hydronephrosis, urine reflux, distal ureteric stricturing and ureterocele formation.</p>
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