PT  - JOURNAL ARTICLE
AU  - D.T. Ginat
AU  - C.J. Schatz
TI  - Imaging Features of Midface Injectable Fillers and Associated Complications
AID  - 10.3174/ajnr.A3161
DP  - 2012 Jul 26
TA  - American Journal of Neuroradiology
4099  - http://www.ajnr.org/content/early/2012/07/26/ajnr.A3161.short
4100  - http://www.ajnr.org/content/early/2012/07/26/ajnr.A3161.full
AB  - SUMMARY: Injectable fillers are increasingly used for midface augmentation, which can be performed for facial rejuvenation and treatment of HIV facial lipoatrophy. A variety of temporary and permanent filler agents has been developed, including calcium hydroxylapatite, collagen, liquid silicone, polytetrafluoroethylene, hyaluronic acid, poly-l-lactic acid, and polyacrylamide gel. Facial fillers are sometimes encountered on radiologic imaging incidentally and should not be mistaken for pathology. Alternatively, patients with facial fillers may undergo imaging specifically to evaluate associated complications, such as infection, overfilling, migration, foreign-body reaction, and scarring. Therefore, it is important to be familiar with the imaging appearances of the various filler materials and their complications.