Introduction: The kidney is the most commonly injured organ of the urinary system. Diagnosis is based on contrast-enhanced computed tomography, with nonoperative (if necessary, minimally invasive) treatment being preferred over open surgery in hemodynamically stable patients.
Case presentation: We present a clinical case of a 71‑year‑old man with a rupture of the kidney and the pyelocalyceal system following a fall from height. Conservative medical treatment was performed and a Double-J ureteral stent was placed. During the course of treatment, no complications related to the renal damage were identified, and renal function gradually recovered. The stent was removed four months later without complications. Additionally, a hernial defect of the abdominal wall formed in the area of the injury and required two surgical procedures.
Conclusion: Ruptures of the renal parenchyma and the pyelocalyceal system in blunt abdominal trauma are serious injuries that pose both diagnostic and therapeutic challenges. Contrast-enhanced computed tomography with a late excretory phase is crucial for accurate diagnosis. Endoscopic treatment is effective and safe, allowing preservation of the kidney.
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