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  • Title: Epibulbar osseous choristoma in 8 patients.
    Author: Shields CL, Qureshi A, Eagle RC, Lally SE, Shields JA.
    Journal: Cornea; 2012 Jul; 31(7):756-60. PubMed ID: 22516954.
    Abstract:
    PURPOSE: To describe the clinical features and histopathology of epibulbar osseous choristoma in a series of patients. METHODS: Noncomparative case series with chart review of 8 patients. RESULTS: At presentation, the mean age of the patients was 19 years (median, 19 years; range, 0.8-38 years), with 6 women and 2 men (6 Caucasian, 1 Hispanic, and 1 African American). There were no related systemic syndromes, and visual acuity was unaffected in all cases. The choristoma was superotemporal (n = 8, 100%), with epicenter located in the fornix (n = 8, 100%), deep to Tenon fascia (n = 8, 100%), and of yellow (n = 2, 25%), white (n = 2, 25%), or pink (n = 4, 50%) color. The mean basal dimension was 9 mm (median, 10 mm; range, 3.5-14 mm), and mean thickness was 4 mm (median, 4 mm; range, 2-5 mm). Four cases were managed with observation and 4 with surgical excision, revealing tumor base adherent to the episclera (n = 2, 50%) or loose within Tenon fascia (n = 2, 50%). There were no cases to demonstrate intrascleral involvement, growth, or recurrence. CONCLUSIONS: Epibulbar osseous choristoma is a congenital lesion of mature bone located superotemporally in the fornix at the level of Tenon fascia or episclera in young patients.
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