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Fig. 4 | Insights into Imaging

Fig. 4

From: Injectable facial fillers: imaging features, complications, and diagnostic pitfalls at MRI and PET CT

Fig. 4

61-year-old woman with discrete facial asymmetry and induration of the left cheek. She had internal fixation of a left tetrapod facial fracture 25 years back. MRI showed a well-circumscribed lesion, isointense to fat on T2 W (a) and post-gadolinium T1 W fat saturated (b) sequences (long arrows). The lesion is located in the left superficial medial cheek fat. Patient confirmed autologous fat filler injection nine months back. The hypointense rim around the filler deposit on T2 and the post-gadolinium rim enhancement on T1 represent a fibrous pseudo-capsule due to scar tissue formation: dashed short arrow in (a) and short arrow in (b)

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