“…Unfortunately, it is often challenging to visualize VCI due to overlaying structures and bowel gas. Therefore, CT or MRI angiography is done because these modalities have much higher sensitivity and can easily show the exact anatomy of the collateral network [3 , 8 , 9 , 13 , 19 , 21] . In addition, genetic testing for thrombophilia and searching for other causes of hypercoagulability, such as prolonged immobilization, recent trauma, surgery, or vascular catheterization, are highly recommended [8] .…”