title: Inflammatory mass formation secondary to hydroxyapatite orbital implant leakage.
abstract: A 28-year-old woman with a history of an hydroxyapatite implantation performed 2 years earlier, presented with complaints of a poorly fitting prosthesis, and fullness of the left upper eyelid accompanied by eyelid erythema. Computed tomography scan showed a mass adjacent to the implant medially. Surgical removal of the implant and mass was performed. Histological examination of the implant revealed degradation on the medial side of the implant while the mass consisted of fibrous tissue with chronic inflammation and lymphoid follicle formation around a foreign material.
authors.affiliation: Department of Ophthalmology, Singapore National Eye Centre, Singapore.
authors.forename: Elaine
authors.initials: E
authors.lastname: Chee
authors.forename: Yoon-Duck
authors.initials: YD
authors.lastname: Kim
authors.forename: Kyung In
authors.initials: KI
authors.lastname: Woo
authors.forename: Jung Hye
authors.initials: JH
authors.lastname: Lee
authors.forename: Jung Hoon
authors.initials: JH
authors.lastname: Kim
authors.forename: Yeon-Lim
authors.initials: YL
authors.lastname: Suh
mesh_terms: D000328:Adult; D020878:Device Removal; D017886:Durapatite; D004890:Erythema / Q000209:etiology; D017234:Eye Evisceration; D005141:Eyelid Diseases / Q000209:etiology; D005260:Female; D005355:Fibrosis; D005549:Foreign-Body Reaction / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D006801:Humans; D008221:Lymphoid Tissue / Q000473:pathology; D009915:Orbit / Q000000981:diagnostic imaging / Q000601:surgery; D054517:Orbital Cellulitis / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D020273:Orbital Implants / Q000009:adverse effects*; D017755:Prosthesis Fitting; D012086:Reoperation; D014057:Tomography, X-Ray Computed
chemical_list: D017886:Durapatite