PMC6594278_01
Facial depiction of the hematoma. Frontal series of the right neck hematoma (eclipsed in white), resulting from dissection of the right external carotid pseudoaneurysm.
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In the interim, she was treated with an intravenous nitroglycerin infusion and hydralazine to achieve near-normotensive pressures over the ensuing 12 hours (see Figure 1).
Right carotid artery cineangiography series. (a) Preintervention: the white ellipse encircles the external carotid artery dissection with contrast extravasation. (b) Intervention: The white arrow indicates successful coil embolization with 0.018" and 0.035" Tornado  embolization coils (Cook Medical  LLC, Bloomington, IN, USA). (c) Postintervention: the white arrow indicates complete occlusion of the external carotid artery distal to the superior thyroid branch; with no antegrade flow within the aneurysm.
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Subsequently, on the second day of hospitalization, selective carotid angiography demonstrated a dissected pseudoaneurysm of the right ECA measuring 2.7 cm, arising in association with the occipital branch with contrast extravasation (see Figure 2(a)). Ad-hoc successful coil embolization was achieved with 0.018" and 0.035" Tornado  embolization coils (Cook Medical LLC, Bloomington, IN, USA) (see Figure 2(b)). At the conclusion of the procedure, cineangiography revealed complete occlusion of the vessel distal to the superior thyroid branch with no further opacification of the aneurysm (see Figure 2(c)).