Figure 3: Axial contrast-enhanced CT image (a) of the thorax at the level of D3 vertebra. Axial contrast-enhanced CT image (b) and axial T2-weighted MR image (c) of the thorax at the level of arch of the aorta show multi-loculated lesion with multiple fluid-fluid levels, better seen on MRI. The lesion is seen to occupy bilateral hemithoraces almost entirely at this level