title: The wayward implant: orbital silicone plate extrusion associated with squamous epithelial downgrowth and infection.
abstract: We report an unusual case of orbital implant migration in which the silicone plates were found to be enveloped in a pseudocapsule surprisingly infected and lined by squamous epithelium of probable conjunctival origin. An epithelial 'plug' found in the inferior fornix portion of the pseudocapsule might have been responsible for bacterial entry into the cavity. We discuss the literature regarding pseudocapsule formation around silicone implants and the phenomenon of capsular contracture. Both the infection and the epithelial downgrowth may have facilitated the implant migration.
authors.affiliation: William H. Havener Eye Center, The Ohio State University, Columbus, Ohio, USA.
authors.forename: Dino D
authors.initials: DD
authors.lastname: Klisovic
authors.forename: Steven E
authors.initials: SE
authors.lastname: Katz
authors.forename: Martin
authors.initials: M
authors.lastname: Lubow
mesh_terms: D000328:Adult; D004847:Epithelial Cells / Q000473:pathology*; D015818:Eye Infections, Bacterial / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D005548:Foreign-Body Migration / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D006801:Humans; D008297:Male; D009916:Orbital Diseases / Q000382:microbiology* / Q000473:pathology / Q000601:surgery; D009917:Orbital Fractures / Q000601:surgery; D019736:Prostheses and Implants / Q000009:adverse effects*; D019919:Prosthesis Implantation; D016459:Prosthesis-Related Infections / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D012826:Silicone Elastomers / Q000009:adverse effects; D013203:Staphylococcal Infections / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D013212:Staphylococcus epidermidis / Q000302:isolation & purification
chemical_list: D012826:Silicone Elastomers