PMC3056365_01
Axial nonenhanced CT scan shows a well-defined round structure (arrow) adjacent to the left renal hilum
IJRI-21-24-g001.jpg
PMC3056365_01_IJRI-21-24-g001.jpg
F0001
A CT scan of the abdomen (5-mm slice width/2.5-mm slice gap) demonstrated a well-defined isodense structure on the nonenhanced scan, adjacent to the left renal hilum [Figure 1], showing homogeneous enhancement [Figure 2].
Axial contrast-enhanced CT scan shows homogeneous contrast enhancement within the structure that was overlapping the left renal artery
IJRI-21-24-g002.jpg
PMC3056365_01_IJRI-21-24-g002.jpg
F0002
A CT scan of the abdomen (5-mm slice width/2.5-mm slice gap) demonstrated a well-defined isodense structure on the nonenhanced scan, adjacent to the left renal hilum [Figure 1], showing homogeneous enhancement [Figure 2].
Narrow collimation, sequential, axial contrast-enhanced CT scans showing the relationships of the various vessels. Arrow 1 - left renal vein, arrow 2 - communicating vein between the left renal vein and the left ascending renal vein, arrow 3 - left ascending lumbar vein, arrow 4 - left renal artery
IJRI-21-24-g003.jpg
PMC3056365_01_IJRI-21-24-g003.jpg
F0003
A repeat CT scan was performed with a narrow collimation (slice width: 1 mm/slice gap: 1 mm) for assessment of the left renal artery and vein [Figure 3], which revealed a varicosity of the communicating vein between the left renal vein (LRV) and the left ascending lumbar vein (LALV) [Figure 3].
Coronal reformatted maximum intensity projection CT scan shows the varicosity of the communicating vein between the left renal vein and the left ascending lumbar vein in close proximity to the left renal artery. (The arrows point to the same structures as in Figure 3)
IJRI-21-24-g004.jpg
PMC3056365_01_IJRI-21-24-g004.jpg
F0004
This was confirmed on multiplanar reformatted images [Figures 4-6], which revealed this varicosity to be straddling the left renal artery.
Sagittal reformatted maximum intensity projection CT scan shows the varicosity of the communicating vein between the left renal vein and the left ascending lumbar vein straddling the left renal artery. (The arrows point to the same structures as in Figure 3)
IJRI-21-24-g005.jpg
PMC3056365_01_IJRI-21-24-g005.jpg
F0005
This was confirmed on multiplanar reformatted images [Figures 4-6], which revealed this varicosity to be straddling the left renal artery.
Axial maximum intensity projection CT scan shows the left renal vein, the left renal artery, and the communicating vein as distinct structures. (The arrows point to the same structures as in Figure 3)
IJRI-21-24-g006.jpg
PMC3056365_01_IJRI-21-24-g006.jpg
F0006
This was confirmed on multiplanar reformatted images [Figures 4-6], which revealed this varicosity to be straddling the left renal artery.