Figure 7c. Fat necrosis and seroma in a 57-year-old woman with a palpable abnormality after TRAM flap reconstruction. (a) Sagittal T1-weighted image shows a high-signal-intensity lobulated mass in the upper breast (*). (b) Sagittal T2-weighted image shows that the mass is hypointense (*). A portion of a complex seroma posterior to the mass is also seen (arrow). (c) Sagittal gadolinium-enhanced 3D subtraction GRE image shows moderate peripheral enhancement of the mass (arrows). These findings are compatible with fat necrosis. (d, e) Corresponding mediolateral oblique (d) and craniocaudal (e) mammograms show that the mass is in the upper outer breast and is ovoid with central lucency (arrow). * = muscular pedicle.