Hedjoudje A, et al. - Via a retrospective study in 46 adult patients with pseudotumor cerebri syndrome, the researchers intended to compare the prevalence and the occipital emissary vein size with those in healthy control subjects in order to determine whether the occipital emissary vein could represent a marker of pseudotumor cerebri syndrome. For patients who underwent transverse sinus stent placement, the average maximum diameters of the occipital emissary vein were larger before stent placement than that of post stent placement. Hence, it was concluded that occipital emissary veins were more frequent and larger in patients with pseudotumor cerebri syndrome than in healthy subjects, a finding consistent with their role as a collateral venous pathway in transverse sinus stenosis. Therefore, the suspicion of pseudotumor cerebri syndrome should be raised through a prominent occipital emissary vein which is an imaging sign.