Successful Endovascular Treatment of Iatrogenic Thyrocervical Trunk Pseudoaneurysm with Concomitant Arteriovenous Fistula Using 0.010-Inch Detachable Microcoils

Figure 1

(a) Duplex ultrasound in the longitudinal plane at the level of the right supraclavicular fossa. The PsA communicated with the root of the thyrocervical trunk (TCT) with inner turbulent flow via the short, narrow neck. Continuity between the PsA and the internal jugular vein (IJV) was also noted. SCA: subclavian artery. (b) Contrast-enhanced computed tomography angiography showed a high-density-flow jet of contrast agent shunting from the TCT (arrow) into the aneurysmal sac via the short neck (arrowhead). (c) Maximum-intensity projection (MIP) image in the arterial phase clearly showed the anatomical relationship between the TCT and PsA neck (arrowhead). A flow jet within the PsA was also shown (arrow). (d) MIP image in the venous phase showed continuity between the aneurysmal sac and internal jugular vein (arrows).

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