title: Imaging of silastic cheek implant penetration into the maxillary sinus.
abstract: OBJECTIVE
  Silastic implants are popular for cosmetic cheek augmentation. We describe the computed tomographic (CT) and magnetic resonance imaging (MRI) findings in 5 cases (4 patients) with penetration of the medial aspect of Silastic cheek implants through the anterior maxillary sinus wall.
  
  
  METHODS
  Three cases demonstrated associated sinus mucosal thickening, and 3 cases demonstrated infection surrounding the implant. In 3 cases, the implants migrated into the maxillary sinus, and in 1 case the implant also eroded through the nasoantral wall and extended into the nasal cavity.
  
  
  CONCLUSIONS
  Maxillary sinus penetration is a potential complication of Silastic cheek implants. The extent of this complication can be characterized by CT and MRI.
authors: Department of Radiology, Massachusetts General Hospital, and Harvard Medical School, Boston, Massachusetts 02114, USA. ginatd01@gmail.com
authors: Daniel T
authors: DT
authors: Ginat
authors: Charles J
authors: CJ
authors: Schatz
mesh_terms: D000368:Aged; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D002610:Cheek; D015921:Dental Implants / Q000009:adverse effects*; D004129:Dimethylpolysiloxanes; D005260:Female; D005548:Foreign-Body Migration / Q000473:pathology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008443:Maxillary Sinus; D015523:Maxillary Sinusitis / Q000175:diagnosis / Q000188:drug therapy / Q000209:etiology; D008875:Middle Aged; D016459:Prosthesis-Related Infections / Q000175:diagnosis / Q000188:drug therapy / Q000209:etiology; D014057:Tomography, X-Ray Computed
chemical_list: D000900:Anti-Bacterial Agents; D015921:Dental Implants; D004129:Dimethylpolysiloxanes; C013830:baysilon