EURORAD ESR

Case 14220

Retrocaval ureter: a congenital cause of right ureteral obstruction

Author(s)
Joao Araujo, Carlos Macedo, Filipa Vilas Boas, Ana Alves, Joao Amorim, Raquel Maia

rua Professor Rodolfo Abreu, N299, Hab C63 4150-637 Porto, Portugal; Email:joaoaraujo.rad@gmail.com
 
Patient
female, 19 year(s)
 
 
  • Figure 1
    Ultrasound

    Right kidney ultrasound showing a moderate degree of hydroureteronephrosis.

     
    Area of Interest: Kidney; Imaging Technique: Ultrasound; Procedure: Diagnostic procedure; Special Focus: Dilatation;
     
     
  • Figure 2
    CT nephrographic phase

    Moderate degree of right kidney hydroureteronephrosis.

     
    Area of Interest: Kidney; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Dilatation;
     
     
  • Figure 3
    CT- Axial excretory phase
     

    Ureter encircling the IVC.

     
    Area of Interest: Kidney; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Dilatation;

    Ureter encircling the IVC.

     
    Area of Interest: Kidney; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Dilatation;
     
     
  • Figure 4
    Coronal reconstruction in the late excretory phase
     

    Medial displacement of the ureter, with S shaped at the level of L3

     
    Area of Interest: Kidney; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Dilatation;

    Maximum intensity projection (MIP) in coronal reconstruction showing the S configuration of the proximal ureter at the level of L3

     
    Area of Interest: Kidney; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Dilatation;
     
     
  • Figure 5
    CT nephrographic phase
     

    Non-dilatated ureter (arrow) emerges between the aorta and the IVC.

     
    Area of Interest: Urinary Tract / Bladder; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Dilatation;

    Non-dilatated ureter (arrow) between the common iliac artery and common iliac vein.

     
    Area of Interest: Kidney; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Dilatation;
     
     
  • Figure 6
    PA abdominal x-ray

    Abdominal x-ray done after the contrast CT, showing opacification of the excretory system, dilated on the right side with the S configuration at the level of L3. Its also possible to see the heart normodimensionated.

     
    Area of Interest: Kidney; Imaging Technique: Plain radiographic studies; Procedure: Diagnostic procedure; Special Focus: Dilatation;
     
     
Right kidney ultrasound showing a moderate degree of hydroureteronephrosis.
 
Moderate degree of right kidney hydroureteronephrosis.
 
Ureter encircling the IVC.
 
Ureter encircling the IVC.
 
Medial displacement of the ureter, with S shaped at the level of L3
 
Maximum intensity projection (MIP) in coronal reconstruction showing the S configuration of the proximal ureter at the level of L3
 
Non-dilatated ureter (arrow) emerges between the aorta and the IVC.
 
Non-dilatated ureter (arrow) between the common iliac artery and common iliac vein.
 
Abdominal x-ray done after the contrast CT, showing opacification of the excretory system, dilated on the right side with the S configuration at the level of L3. Its also possible to see the heart normodimensionated.
 
 
 
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