American Journal of Neuroradiology 28:1565-1566, September 2007
DOI 10.3174/ajnr.A0610
© 2007 American Society of Neuroradiology
Case Report
HEAD & NECK
MR Imaging Features of Giant Reservoir Formation in the Orbit: An Unusual Complication of Ahmed Glaucoma Valve Implantation
a Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
b Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
Please address correspondence to Hyung-Jin Kim, Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-Dong, Kangnam-Ku, Seoul 135-710, Korea; e-mail: hyungkim{at}smc.samsung.co.kr
SUMMARY: We report the MR imaging findings of an unusually large fluid collection, so-called giant reservoir, around an Ahmed glaucoma valve implant that caused progressive proptosis in a patient with posttraumatic glaucoma. Although other cystic lesions of the juxtalacrimal area of the orbit, such as dermoid cyst, can present similar imaging findings, the characteristic morphology and location should lead the radiologist to the correct nature of this cystic lesion.
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