Congenital anomalies of the inferior vena cava and iliac veins: A cross-sectional study by multi-detector computed tomography

PurposeTo study the prevalence of the anomalies of inferior vena cava and iliac veins branching patterns by multi-detector CT.Materials and methodsRetrospective analysis of the images of 1167 patients who underwent contrast-enhanced MDCT examination of the abdomen and pelvis during the period from first of November 2014 to the 31st of October 2015, with recording of the detected IVC and iliac veins branching patterns anomalies.ResultsOf 1167 patients who underwent imaging, 1144 were included in the study. They included 571 males (50%) and 573 (50%) females, ages ranged from one year old to 90 years old, with a mean of 49.7 years (±16.3). 918 patients (80%) had normal IVC and normal iliac veins branching pattern, 110 cases showed isolated IVC anomalies with normal iliac veins branching pattern (49%), 110 showed isolated iliac veins branching anomalies (49%), and six patients showed combined IVC and iliac veins anomalies (2%). No statistically significant sex correlation with the anomalies was found.ConclusionMulti-detector CT can display different anomalies and variations in IVC and the iliac vein, findings of potential clinical and operative importance in abdominal and pelvic surgeries.