MR evaluation of PDMS injections in head and neck tissues: a pilot study.
OBJECTIVE
To describe the magnetic resonance (MR) appearance of polydimethylsiloxane (PDMS) injections in the head and neck region.


METHODS
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.
Alicandri-Ciufelli
Matteo
M
Otolaryngology-Head and Neck Surgery Department, University Hospital of Modena, Via del Pozzo 71, 41100 Modena, Italy.
Ligabue
Guido
G
Grammatica
Alberto
A
Bergamini
Giuseppe
G
Marchioni
Daniele
D
Ghidini
Angelo
A
Genovese
Elisabetta
E
Presutti
Livio
L
D000328:Adult; D000368:Aged; D004129:Dimethylpolysiloxanes / Q000008:administration & dosage*; D005064:Eustachian Tube / Q000002:abnormalities; D005260:Female; D006801:Humans; D007267:Injections; D007818:Laryngeal Diseases / Q000628:therapy*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009668:Nose Diseases / Q000628:therapy; D010865:Pilot Projects; D012189:Retrospective Studies; D016896:Treatment Outcome; D014826:Vocal Cord Paralysis
D004129:Dimethylpolysiloxanes