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Case of the Week 488



What is the most likely diagnosis?

  • 37 year old male with hematuria



Coronal Reformatted CT Urogram

  1. Paget disease
  2. Bladder rupture
  3. Retrocaval ureter
  4. Retroperitoneal fibrosis
  5. Avascular necrosis

Additional Images-Axial CT image of abdomen

 

Additional Images

 

Axial CT image of abdomen


Answer:

 

3. Retrocaval ureter

 

More (Click Discussion Tab)

 

 

RetroCaval Ureter

General Considerations

  • Also known as “circumcaval ureter”
  • Abnormality in embryogenesis of IVC
    • Results from abnormal persistence of right subcardinal vein positioned ventral to ureter in the definitive IVC
    • Developing right ureter courses behind and medial to the IVC
  • Incidence
    • 0.07%
    • Male to female ratio of  3:1

MORE . . .

 


.

This Week
37 year old male with hematuria
 
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Some of the fundamentals of interpreting chest images
 
The top diagnostic imaging diagnoses that all medical students should recognize according to the Alliance of Medical Student Educators in Radiology
 
Recognizing normal and  key abnormal intestinal gas patterns, free air and abdominal calcifications
 
Recognizing the parameters that define a good chest x-ray; avoiding common pitfalls
 
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LearningRadiology.com
is an award-winning educational website aimed primarily at medical students and radiology residents-in-training, containing  lectures, handouts, images, Cases of the Week, archives of cases, quizzes, flashcards of differential diagnoses and “most commons” lists, primarily in the areas of chest, GI, GU cardiac, bone and neuroradiology.