Figure 4. A sagittal computed tomography image of the thyroid vascular supply. Close to the origin of the posterior glandular branch ‘C’ of the right superior thyroid artery ‘A’ there is a suggestion of an abrupt decrease in caliber (*) without distal opacification beyond this point. Note that this finding is at the level of the bullet path (arrowhead) and upper to middle aspect of the right thyroid lobe (curved arrow), which shows decreased parenchymal enhancement. For comparison, the anterior glandular branch ‘D’ has adequate opacification throughout its course. The findings favor vasospasm rather than an arterial injury (arterial transection in the setting of gunshot wounds).