Retrobulbar Bilateral Optic Nerve Colobomatous Cysts; MRI &
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Colobomatous cyst of the orbit is a rare malformation associated with microphthalmic globe or asymmetrically large globe.Usually, it appears since birth without any sex predilection and can affect one globe or rarely both the globes. A coloboma is a gap or defect in the globe resulting from the failure of the choroidal fissure to close. A coloboma may be an isolated finding or a part of a complex syndrome. Orbital cystic lesions in childhood differ in their pathology and management. MRI & CT scan can demonstrate the anatomic relationship of the cyst to the globe, prior to surgical intervention as well as any associated developmental anomalies of the brain. We report an 11 year male child with bilateral retrobulbar optic nerve Colobomatous cyst, presenting with diminution of vision, evaluated clinically and radiologically by CT & MRI....

http://medcraveonline.com/JCPCR/JCPCR-04-00144.php
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