Large orbital glial heterotopia- A rare entity.

A 15-month-old child was brought to the ophthalmology outpatient department with his parents complaining of a large mass located on the nasal side of his right eye since birth. On examination, an irregular mass was seen to be located on the nasal side of his right orbit, obscuring the visual axis. On a contrast-enhanced computed tomography scan, a heterogenous lesion was seen to be located on the bridge of the nose and the medial aspect of the right orbit without any bony defect or communication with the brain or sinuses. In view of the possibility of developing amblyopia, the lesion was surgically removed. On histopathological examination, a diagnosis of extranasal glial heterotopia was made. To the best of our knowledge, this is the largest extranasal glial heterotopia in the orbit to be ever reported.