Related Experiment Videos
Epibulbar osseous choristomas with scleral involvement
R S Gonnering1, F H Fuerste, B N Lemke
1Department of Ophthalmology, University of Wisconsin, Madison.
Ophthalmic Plastic and Reconstructive Surgery
|January 1, 1988
Summary
Epibulbar osseous choristomas, rare congenital bone growths, can deeply involve the sclera. Advanced imaging aids in preoperative diagnosis, potentially deferring surgery for these orbital lesions.
Area of Science:
- Ophthalmology
- Congenital Abnormalities
- Histopathology
Background:
- Epibulbar osseous choristomas are rare congenital bone formations typically found in the superotemporal fornix.
- Preoperative diagnosis is often challenging, with lesions commonly mistaken for epibulbar dermoids or dermatolipomas due to their superficial appearance.
Observation:
- This study presents two cases of epibulbar osseous choristomas with unusual, intimate scleral incorporation.
- In one case, advanced imaging techniques, including computerized tomography and echography, facilitated preoperative diagnosis and assessment of scleral involvement.
Findings:
- Unlike previously reported cases with loose attachments, these choristomas demonstrated significant integration with the sclera.
- Preoperative imaging allowed for a diagnosis that led to the deferral of surgical intervention in one patient.
Implications:
- The findings highlight the importance of advanced imaging in evaluating epibulbar osseous choristomas to identify potential scleral involvement.
- Understanding the embryogenesis, possibly linked to embryonic mesenchymal cell activation, may offer insights into managing these rare orbital tumors.