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Updated: May 7, 2026
06:51
Multilevel Microdissection and Functional-Structural Profiling of Human Renal Arterial Branches
Published on: September 5, 2025
787
[Ruptured renal artery aneurysms in microscopic polyangiitis]
Mohamed Jira1, Youssef Sekkach, Naoual Elomri
1Service de médecine interne « B », hôpital militaire d'instruction Mohammed V, Rabat, Maroc.
Nephrologie & Therapeutique
|October 10, 2013
Summary
Microscopic polyangiitis can present with unusual renal artery aneurysms. Early detection of these aneurysms is crucial for managing this rare complication in patients with microscopic polyangiitis.
Area of Science:
- Nephrology
- Rheumatology
- Neurology
Background:
- Microscopic polyangiitis (MPA) is a rare systemic vasculitis.
- Renal artery aneurysms are an uncommon manifestation of MPA.
Observation:
- A 55-year-old male with MPA presented with demyelinating polyradiculoneuropathy.
- Diagnosis confirmed by alveolar hemorrhage, peripheral neuropathy, and glomerulonephritis with positive antimyeloperoxidase antibodies.
- Patient experienced shock due to ruptured intrarenal artery aneurysms.
Findings:
- MPA can lead to the formation of intrarenal artery aneurysms.
- Rupture of these aneurysms can cause life-threatening hemorrhage and shock.
- Antineutrophil cytoplasmic antibodies (ANCA), specifically antimyeloperoxidase (MPO) antibodies, are key diagnostic markers.
Implications:
- Highlights the importance of screening for intrarenal aneurysms in MPA patients.
- Suggests a potential link between MPA and the development of renal artery aneurysms.
- Emphasizes the need for prompt diagnosis and management of MPA complications.
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