(A) Axial computed tomography (CT) image of the neck showing a collection in the right sternocleidomastoid muscle. (B) Axial CT image of upper chest showing a collection in the anterior mediastinum (asterisk), and another multiseptated collection in the posterior mediastinum (arrows). (C) Coronal reconstruction of chest CT with a better view of the posterior mediastinum collection extending downwards from the head. (D) Sagittal reconstruction of chest CT showing “pigtail” drainage tube (arrow) placed in the posterior mediastinal collection.