Epibulbar osseous choristoma: A clinical case and review of the literature

Arenas-Canchuja F.; Muro-Mansilla P.; Urbano Ale E.; Silva-Ocas I.; Gálvez-Olortegui T.; Marroquín-Loayza L. · Archivos de la Sociedad Espanola de Oftalmologia (2020) · DOI: 10.1016/j.oftal.2020.02.005

Resumen

We present the case of a 3-year-old male child with an epibulbar bone choristoma. The patient presented with a hard consistency subconjunctival mass of 8 × 10 mm in the superior-temporal quadrant of his right eye along with vascularisation and a long cilium of approximately 8 to 10 mm that touched the corneal surface. The histopathology study showed the presence of trabeculae of mature, compact bone surrounded by fibrous tissue, as well as Havers channels with concentric rings of laminar bone without bone marrow, and with normal osteocytes which defined the diagnosis of epibulbar bone choristoma. Osseous choristoma is the rarest type of the ocular choristoma and should be considered as a differential diagnosis among paediatric epibulbar tumours.

Instituciones: Universidad Peruana Cayetano Heredia