Purpose or Case Report: The purpose of this educational exhibit is to give an overview of imaging findings related to the pediatric orbit and optic pathway. Categories of findings include normal anatomy as well as abnormal anatomic variants, prenatal (fetal) as well as congenital/neonatal abnormalities, Infection/Inflammation and neoplastic disease.

Methods & Materials: This is a retrospective review of over 25 cases in patients ranging in age from 25 weeks gestation to 18 years old. Cases were imaged between 1/2005 and 4/2016.

Results: A majority of cases were performed with MRI, while few demonstrate findings on CT. There are at least 7 included fetal MRI cases, some of which emphasize normal globe development, anopthalmia/micropthalmia, hyper/hypotelorism and associated abnormalities as well as congenital dacryocystoceles. Congenital cases include orbital and optic pathway abnormalities associated with trisomies, septo-optic dysplasia, as well as Aicardi Syndrome and Krabbe disease. Cases demonstrating infection include examples of preseptal/postseptal cellulitis as well as its complications, toxocariasis. Inflammatory cases include orbital inflammatory pseudotumor, thyroid opthalmopathy, optic neuritis (in relation to multiple sclerosis and neuromyelitis optica). Neoplastic cases include retinoblastoma, optic pathway glioma in neurofibromatosis type 1, orbital meningioma, venolymphatic malformation, rhabdomyosarcoma, metastatic neuroblastoma.

Conclusions: This educational exhibit serves as a basic overview of imaging findings related to the pediatric orbit and optic pathway. It should help to familiarize trainees with basic anatomy/anatomic variants as well as common pathology. The exhibit should also serve as a review for anyone involved in pediatric neuroimaging.