Figure 2. (a) Axial T1 weighted image shows that the mass (open arrow) is well defined and slightly hyperintense relative to the chest wall muscles. (b) Axial T2 weighted image shows that the mass (open arrow) becomes heterogeneously hyperintense. (c) Axial enhanced T1 weighted image shows moderate enhancement of the mass (open arrow). Note small linear areas of hypointensity in all pulse-sequence images.