Abstract
Objectives To describe the magnetic resonance (MR) appearance of polydimethylsiloxane (PDMS) injections in the head and neck region. Study design Retrospective review of MR images from a case series. Methods MR images of 10 patients, who underwent PDMS injections at our department, were reviewed. Data from imaging were collected and analyzed. Results After injection, PDMS can be identified in MR images, particularly in T2-weighted images in the early stages. Its MR characteristics are similar to silicone in other regions, but with time, its appearance can change. Conclusions The integration of PDMS with tissues may also be reflected in changes in MR appearance, as a result of an increased amount of fibrous tissue in the region injected. Radiologists and ENT specialists may benefit from knowledge of the MR characteristics and variability in appearance of PDMS in human tissues for improving image interpretation.
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