Related Experiment Video
Updated: May 15, 2026

Three-Dimensional Reconstruction of Orbital Fractures
Published on: May 16, 2025
Inflammatory mass formation secondary to hydroxyapatite orbital implant leakage
Elaine Chee1, Yoon-Duck Kim, Kyung In Woo
1Department of Ophthalmology, Singapore National Eye Centre, Singapore.
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.
Related Concept Videos
Glaucoma: Overview
Inflammatory Response II: Inflammatory Exudate and Tissue Repair
The typical wound exudate is odorless, transparent, straw-colored, thin, and watery. Exudate, however, can differ depending on the state of wound healing. Likewise, the exudate's...
Cytotoxic Edema: Pathophysiology
