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Epibulbar osseous choristoma: a case report
Thendral Ponnudurai1, Sophia Louisraj1, Amjad Salman1
1Cornea Department, Institute of Ophthalmology, Joseph Eye Hospital, Trichy, Tamilnadu, India.
International Medical Case Reports Journal
|October 28, 2017
Summary
A rare case of epibulbar osseous choristoma, a benign bone tumor, was found in a 15-year-old girl. Surgical removal confirmed the diagnosis, highlighting its importance in pediatric eye tumor differentials.
Area of Science:
- Ophthalmology
- Pathology
- Pediatric Oncology
Background:
- Epibulbar osseous choristoma is a rare congenital tumor composed of bone tissue, typically presenting as a benign mass on the surface of the eye.
- Differential diagnosis for pediatric epibulbar tumors is crucial for appropriate management and treatment strategies.
Observation:
- A 15-year-old female presented with a 3x3 mm, whitish, firm, vascularized subconjunctival mass in the superotemporal quadrant of her right eye.
- The mass was surgically excised under topical anesthesia.
Findings:
- Pathologic examination revealed a well-circumscribed osseous tissue, consistent with an epibulbar osseous choristoma.
- No evidence of cellular atypia was observed, indicating a benign nature of the tumor.
Implications:
- This case underscores the importance of considering osseous choristoma in the differential diagnosis of epibulbar tumors in children.
- Early diagnosis and complete surgical excision are essential for favorable outcomes in pediatric ocular tumors.

