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Urolithiasis in adults with congenital megaureter
Gregory S Rosenblatt1, Ken Takesita, Gerhard J Fuchs
1Minimally Invasive Urology Institute, Cedars-Sinai Medical Center, Los Angeles, CA.
Summary
Congenital megaureter in adults is rare but can cause kidney stones. This condition, characterized by ureteral dilation, often leads to urolithiasis within the abnormal segment.
Area of Science:
- Urology
- Radiology
- Nephrology
Background:
- Congenital megaureter is a rare condition in adults.
- Urolithiasis can be an unusual presenting symptom of congenital megaureter.
- Stones may form within or proximal to the dilated ureteral segment.
Purpose of the Study:
- To report two cases of nephrolithiasis in adults with segmental megaureter.
- To highlight the association between kidney stones and congenital megaureter in adults.
- To emphasize the importance of considering congenital megaureter in adult urolithiasis cases.
Main Methods:
- Case report of two adult male patients.
- Computed tomography (CT) scan for stone and ureteral abnormality detection.
- Clinical presentation and diagnostic imaging review.
Main Results:
- Case 1: 58-year-old male with a 2-cm distal ureteral stone in an isolated segmental distal ureteral dilation.
- Case 2: 48-year-old male with recurrent renal urolithiasis associated with isolated distal megaureter.
- Demonstrated that urolithiasis can occur within or away from the dilated ureteral segment.
Conclusions:
- Congenital megaureter should be considered in adults presenting with urolithiasis and isolated distal ureteral dilation.
- Adult-onset megaureter diagnosis may necessitate complex surgical interventions.
- Prompt diagnosis and management are crucial to prevent recurrent symptoms and complications.
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