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Related Experiment Videos

Renal artery aneurysm causing hydronephrosis.

Y Miyagawa1, T Oka, Y Takano

  • 1Department of Urology, Osaka National Hospital, Osaka, Japan. miyagawa@uro.med.osaka-u.ac.jp

International Journal of Urology : Official Journal of the Japanese Urological Association
|September 14, 2001
PubMed
Summary

A renal artery aneurysm compressing the ureter caused hydronephrosis. Surgical repair successfully relieved the obstruction, highlighting the utility of 3D CT in diagnosing this rare condition.

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Area of Science:

  • Nephrology
  • Vascular Surgery
  • Radiology

Background:

  • Renal artery aneurysms are rare vascular abnormalities.
  • Aneurysms can cause significant complications, including hydronephrosis due to extrinsic compression.
  • Diagnosis and management require advanced imaging and surgical expertise.

Observation:

  • A 42-year-old man presented with incidentally discovered left hydronephrosis.
  • Imaging revealed a 30 mm non-calcified renal artery aneurysm compressing the pyeloureteral junction.
  • Three-dimensional computed tomography (3-D CT) precisely delineated the aneurysm's location and involvement of the anterior segmental artery.

Findings:

  • The renal artery aneurysm was successfully treated with aneurysmectomy and in situ revascularization.

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  • This intervention effectively relieved the pyeloureteral junction compression and resolved the hydronephrosis.
  • A literature review identified 15 reported cases of renal artery aneurysms causing hydronephrosis, with most cases documented in Japan.

    • Implications:

    • Three-dimensional computed tomography (3-D CT) is highly recommended for the accurate evaluation of renal artery aneurysms.
    • Surgical intervention, including aneurysmectomy and revascularization, can effectively treat hydronephrosis caused by renal artery aneurysms.
    • Increased awareness and reporting of such cases are crucial for understanding the epidemiology and management of this rare condition.