[Spontaneous perirenal hemorrhage in patients with polyarteritis nodosa]
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Updated: Oct 9, 2026

A Large Animal Model for Acute Kidney Injury by Temporary Bilateral Renal Artery Occlusion
Published on: February 2, 2021
M Bindi1, F Quartieri, P Scatena
1I Divisione Medica, Ospedale Cisanello, Pisa.
Abstract:
Polyarteritis nodosa is a necrotising vasculitis of small and medium-sized arteries. All coats of these vessels are involved easily resulting in aneurysm formations. It is an immunologic disease owing to immune complexes deposits. Kidney affection is over 80%. Polyarteritis nodosa may be complicated by perirenal hematoma, hemobilia, intrahepatic hemorrhage, epidural hematoma. Spontaneous perirenal hematoma can be the initial manifestation of this disease. Abdominal ultrasonography can provide a quick diagnosis of complicating disease and embolization by interventional radiology may be considered a therapeutic alternative to surgery.
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