Mediastinal Neuro-Endocrine Tumor

Man 62 y/o with chest pain and newly formed tissue in the left anterior superior mediastinal lodge.
Panoramic images of the venous collateral circulation and of the mediastinal mass.
Right lung normal-expanded with no obvious pleuro-pulmonary focal abnormalities.
Left lung hypo-expanded with atelectasis/compaction of the lower lobe.