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Abstract #60215 Published in IGR 16-4
Open-angle glaucoma and paraoptic cyst: first description of a series of 11 patients
Bertrand A; Vignal C; Lafitte F; Koskas P; Bergès O; Héran FAmerican Journal of Neuroradiology 2015; 36: 779-782
We report 11 patients who were referred to our institution for severe open-angle glaucoma who had a paraoptic cyst on MR imaging. All cysts were extraoptic and retrolaminar; most were deforming the adjacent optic nerve. Cysts had a high signal on T2 and FLAIR sequences, and a variable signal on T1 and variable echogenicity, suggesting different proteinaceous content. Arterial vascularization of the optic nerve was normal. Cyst volumes were inversely correlated with the severity of glaucoma on the same eye (P < .01-.05, Spearman correlation coefficient). We hypothesized that such cysts may reflect a valve mechanism, which would allow preservation of the translamina cribrosa pressure and thus could preserve visual function. The rarity of this association, together with the frequent mass effect of the cyst on the optic nerve, stresses the necessity of long-term follow-up in these patients.
From the Departments of Diagnostic Neuroradiology (A.B., F.L., P.K., O.B., F.H.) Department of Diagnostic and Functional Neuroradiology (A.B.), Pitié-Salpétrière Hospital, Paris, France.
Full articleClassification:
2.15 Optic nerve (Part of: 2 Anatomical structures in glaucoma)
6.30 Other (Part of: 6 Clinical examination methods)
