The obliteration of which of the following structures is most suggestive of a posterior mediastinal mass.
Obliterated left subclavian artery reflection | |
Effacement/dense ascending aorta | |
Pseudoparavertebral line (left) | |
Obliterated cardiophrenic angle | |
Cervicothoracic sign |
A mass extending above the superior clavicle with lung tissue located between the mass and the neck is likely to lie in the posterior mediastinum. This appearance is termed the cervicothoracic sign and is suggestive of a posterior mediastinal mass. Obliterated left subclavian artery reflection, Effacement/dense ascending aorta, & Obliterated cardiophrenic angle are suggestive of an anterior mediastinal mass. Pseudoparavertebral line (left) is suggestive of a middle mediastinal mass.