Angiomatous malformation of the retrolaminar optic nerve

A vascular abnormality of the optic nerve was found incidentally in two infants whose eyes were enucleated because of the clinical suspicion of retinoblastoma. The lesion consisted of numerous thin-walled vascular channels within pial septa of the retrolaminar optic nerve. Although it is unclear if this angiomatous malformation could disturb vision, the lesion may be more common than can be inferred from the small number of reported cases.