Absent infrarenal inferior vena cava
Left flank pain
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Non-enhanced computed tomography (CT) of the abdomen showing an absent infrarenal inferior vena cava. The left renal colic (left ureteral calculus with associated ureterohydronephrosis and peri-ureteral/renal fat stranding) was causing the patient's symptoms.
Absent infrarenal inferior vena cava, infra-pubic subcutaneous varices, calcified adrenal glands, and hypodense liver lesion of the segment VI (+ steatosis) were all incidental findings.
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Absence of the infrarenal inferior vena cava (IVC) is a rare finding that can be congenital or due to perinatal IVC thrombosis. In this situation, the iliac veins will drain into enlarged lumbar veins toward prominent azygos and hemiazygos veins. The renal veins will join to form the suprarenal IVC.
- Bass JE, Redwine MD, Kramer LA, et al. Spectrum of congenital anomalies of the inferior vena cava: cross-sectional imaging findings. (2000) Radiographics : a review publication of the Radiological Society of North America, Inc. 20 (3): 639-52. doi:10.1148/radiographics.20.3.g00ma09639 - Pubmed
- Queiroz AB, Campos Júnior W, Puech-Leão P, et al. Absence of the infrarenal inferior vena cava. (2015) Journal of vascular surgery. 62 (6): 1641. doi:10.1016/j.jvs.2014.05.003 - Pubmed