Figure 7From: The role of noninvasive and invasive diagnostic imaging techniques for detection of extra-cranial venous system anomalies and developmental variants Example of computerized tomography venography of internal jugular and azygos veins. Axial (A) reconstructions of internal jugular veins. Axial and sagittal reconstructions of azygos vein (B and C) are shown, but their diagnostic value is questionable.Back to article page