Heterotopic brain tissue is a rare entity and it is rarer still in the orbit. There have been very few case reports of orbital ectopic glial tissue. The case is described herein of a 3-month-old baby presenting with an orbital glial hamartoma inseparable from the medial rectus muscle. The diagnosis was based on the histopathological features and a positive GFAP stain. The features of this case and the previously reported cases are discussed.
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