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Updated: Aug 7, 2026

Noninvasive and Invasive Renal Hypoxia Monitoring in a Porcine Model of Hemorrhagic Shock
Published on: October 28, 2022
[Spontaneous retroperitoneal hemorrhage]
I Muro Bidaurre1, J P Sanz Jaka, J A Recarte Barriola
1Servicio de Urología, Hospital de Guipuzcoa, San Sebastián, Guipuzcoa, España.
Objective:
The etiology of spontaneous retroperitoneal hemorrhage is analyzed and the clinical, diagnostic and therapeutic aspects are discussed.
Methods/Results:
Two cases of spontaneous retroperitoneal hemorrhage from a ruptured adenocarcinoma of the kidney are reported. Both patients presented the characteristic Lenk's triad. Definitive diagnosis was made on the CT findings and treatment was by nephrectomy.
Conclusions:
The most common cause of retroperitoneal hemorrhage arising from the kidney is a tumor. Treatment is based on the underlying cause of the underlying cause of the hemorrhage and the patient's hemodynamic status.
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