20 April 2026
: Case report 
Pseudoaneurysm of the Left Renal Segmental Artery With Delayed Detection After Blunt Trauma
Unusual clinical course
Atsuto Kobayashi E 1*, Masakazu Nabeta E 1, Nobuhisa Hirayu E 1, Osamu Takasu F 1DOI: 10.12659/AJCR.951740
Am J Case Rep 2026; 27:e951740
Figure 3 Contrast-enhanced computed tomography (CT) findings on day 6 and day 12 after injury. (A) Axial and (C) coronal reconstructed images on day 6 (obtained to evaluate the source of fever) show a resolving perirenal hematoma with an irregular low-attenuation perirenal collection adjacent to the left kidney (arrow), suggestive of urinary extravasation/urinoma. (B) Axial and (D) coronal reconstructed arterial-phase images on day 12 demonstrate a newly apparent pseudoaneurysm arising from a left renal segmental artery (arrows), surrounded by a perirenal hematoma.