Page kidney caused by progressive perirenal urinoma with bridging septa: Sonographic and CT findings

We report a case with Page kidney caused by a progressive perirenal urinoma with bridging septa from the renal capsule extending to the renal fascia. A young man who had sustained blunt trauma to right flank developed hypertension 3 weeks after the trauma. Both sonography and computed tomography revealed a localized compression of right renal upper pole by a compartment of progressive urinoma separated by bridging septa from the renal capsule extending to the renal fascia. Color Doppler imaging showed crushed flows encoded with lighter colors in the extrinsic compressed parenchyma. Blood pressure normalized following simultaneous placements of a right ureteral stent and percutaneous drain tube in a target compartment of the urinoma. Although Page kidney caused by a urinoma with bridging septa is rare, the disease should be considered in patients who had a history of blunt trauma and developed hypertension.