title: Imaging features of midface injectable fillers and associated complications.
abstract: 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.
authors: Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA. ginatd01@gmail.com
authors: D T
authors: DT
authors: Ginat
authors: C J
authors: CJ
authors: Schatz
mesh_terms: D016477:Artifacts; D001672:Biocompatible Materials / Q000008:administration & dosage / Q000009:adverse effects*; D003357:Cosmetic Techniques / Q000009:adverse effects*; D003952:Diagnostic Imaging / Q000379:methods*; D005145:Face / Q000000981:diagnostic imaging* / Q000473:pathology; D005547:Foreign Bodies / Q000175:diagnosis* / Q000209:etiology*; D006801:Humans; D007271:Injections, Intradermal; D011859:Radiography; D011877:Radionuclide Imaging
chemical_list: D001672:Biocompatible Materials