Fig 1. A 22-year-old man with giant reservoir associated with Ahmed glaucoma valve implantation. A and B, Coronal T1-weighted (A) and fat-suppressed T2-weighted (B) MR images of the orbit show a 1.7-cm ovoid, thin-walled, purely cystic lesion in the superotemporal aspect of the right orbit between the lacrimal gland and the globe (arrows). A dark curvilinear band representing the silicone-made endplate of the implant is seen at the center of the cyst on both T1- and T2-weighted images. Also noted is mild indentation of the adjacent superotemporal wall of the right globe. C, Axial contrast-enhanced fat-suppressed T1-weighted MR image demonstrates no significant enhancement within the lesion.