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Right renal ectopia following major weight loss.
Amjed Safaa Abdulrasool1, Morten Westergaard Noack2,3, Ellen Kristine Overgaard4
1Department of Gastrointestinal Surgery, Lillebaelt Hospital - University Hospital of Southern Denmark, Kolding, Denmark amjedsafaa@gmail.com.
BMJ Case Reports
|November 6, 2025
Summary
A 90-year-old woman with sigmoid volvulus experienced successful colonoscopic desufflation. Over 16 years, her right kidney migrated cranially without symptoms, highlighting age-related organ displacement.
Area of Science:
- Geriatric Medicine
- Radiology
- Gastroenterology
Background:
- Sigmoid volvulus is a rare cause of bowel obstruction, particularly in the elderly.
- Organ migration can occur due to aging, weight loss, or metabolic changes.
- Ectopic kidneys, while uncommon, can present diagnostic challenges.
Purpose of the Study:
- To report a unique case of significant cranial kidney displacement in an elderly patient.
- To discuss the implications of age-related anatomical changes on diagnostic imaging.
- To emphasize the importance of recognizing organ migration in clinical practice.
Main Methods:
- Case report of a nonagenarian female patient.
- Review of serial imaging studies over 16 years.
- Colonoscopic management of sigmoid volvulus.
Main Results:
- Successful treatment of sigmoid volvulus with colonoscopic desufflation.
- Gradual, asymptomatic cranial migration of the right kidney to the hepato-diaphragmatic space.
- No renal dysfunction or need for intervention for the ectopic kidney.
Conclusions:
- Age-related organ displacement is a recognized phenomenon that can affect renal position.
- Awareness of anatomical variants is crucial to prevent misinterpretation of incidental imaging findings.
- Routine imaging for asymptomatic positional changes is not recommended.
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