Retinal Dysplasia Mimicking Intraocular Tumor: MR Imaging Findings with Histopathologic Correlation

Axial T1WI (A) image shows a hyperintense mass in the anterior part of the vitreous (V), adjacent to the ciliary body (CB) on either side of the lens, combined with a tent-shaped retinal detachment with hyperintense subretinal fluid (SF). T2WI (B) image shows retinal detachment as a hypointense fine linear structure (R) and clearly demarcates the dysplastic retinal tissue (D). After we applied the contrast material (C, contrast-enhanced fat-suppressed T1WI image), the latter shows enhancement (D), in contrast to the detached retina (R) and subretinal fluid. Coronal contrast-enhanced fat-suppressed T1WI (D) MR images reveal absence of the optic nerve (asterisk) in an otherwise normal orbit. sop indicates superior ophthalmic vein; oa, ophthalmic artery.