Case Report

Imaging Manifestations of Mediastinal Fat Necrosis

Figure 1

Axial (a) and sagittal (b) contrast-enhanced chest CT (soft tissue window) shows an anterior mediastinal ovoid fat attenuation lesion (arrows) with intrinsic and surrounding soft tissue attenuation stranding. The lesion is demarcated by a thin rim of soft tissue attenuation and abuts the adjacent pericardium. Note small left pleural effusion (b).