Procedural Sedation with Dexmedetomidine for Anterior Mediastinotomy in a High-Risk Patient

Figure 1

Contrast-enhanced computer tomography (CECT) with axial reformat shows a bulky anterior mediastinal mass (black asterisk) encasing and compressing the superior vena cava (white arrow), resulting in superior vena cava syndrome. The mass also deviates from the aortic arch (black arrow) and the trachea (white arrowhead), with a marked reduction of the tracheal diameter.