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  • Title: Epibulbar osseous choristoma: A clinical case and review of the literature.
    Author: Arenas-Canchuja F, Muro-Mansilla P, Urbano Ale E, Silva-Ocas I, Gálvez-Olortegui T, Marroquín-Loayza L.
    Journal: Arch Soc Esp Oftalmol (Engl Ed); 2020 Jun; 95(6):289-292. PubMed ID: 32197870.
    Abstract:
    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 8×10mm in the superior-temporal quadrant of his right eye along with vascularisation and a long cilium of approximately 8 to 10mm 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.
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