Giant Calcified Renal Artery Aneurysm: Traditional RX versus Three-Dimensional Computed Tomography

Abstract

A 65-year-old woman with no history of previous flank trauma, renal stone or upper urinary tract infections, presented for flank pain and left hydro-uretero-nephrosis seven days after hysterectomy. Percutaneous pielography revealed narrowing of the distal ureter, without endoureteral mass. The plain abdomen film incidentally showed a 3-cm calcified ring on the left renal shadow, who resulted external to the collecting system at pielography. A 3-dimensional-CT scan with angiographic reconstruction revealed a 3-cm calcified renal artery aneurysm. The vascular surgeon suggested a watchful waiting. The patient underwent ureteral reimplantation with ureteral stenting, allowing a complete recovery of iatrogenic stenosis two months postoperatively.

Two Cases of the Calcified Renal Artery Aneurysm. Differential Diagnosis and Treatment (Own Experience)

“…The true RAA are usually located in the main trunk of the renal artery or at its bifurcation, at the same time the false ones dominate in the intrarenal arteries. Size of the aneurysm ranges from the several mm up to 8 cm, the mean diameter is 2.1 cm [10]. Calcified RAA is visible on the KUB in 27-50% cases and can be misdiagnosed as a kidney stone [3,11,12].…”

Renal artery aneurysm misdiagnosed as a pelvic stone: A case report

“…The true aneurysm contains all artery walls including intima, media, and adventitia, while it is not applied for false aneurysms. Different etiologies have been proposed for true aneurysms including fibromuscular dysplasia and atherosclerosis; however, the false aneurysms are mainly due to iatrogenic trauma and infection [4] .…”