Meira Fogel Levin, Avner Hostovsky, Alessandro Feo, Melissa Yao, Ahmad Santina, Rania Estawro, Joo Yeon Jung, Neda Abraham, Stacy L. Pineles, David Sarraf
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引用次数: 0
Abstract
Objective
To characterize the spectral-domain optical coherence tomography (SD-OCT) features of flame-shaped epiretinal membranes (ERMs) in patients with and without neurofibromatosis type 2 (NF2).
Methods
This retrospective study included 9 patients (13 eyes) with flame-shaped ERMs from 3 tertiary centres. Multimodal imaging and clinical data were systematically analyzed.
Results
Six of 9 subjects with flame-shaped ERM were confirmed NF2 patients. Among the NF2 cohort of 12 eyes, SD-OCT revealed flame-shaped ERMs in 10 eyes (83%). Flame-shaped ERMs were bilateral in 4 patients (8 eyes) and unilateral in 2 patients (2 eyes). The fellow eyes of these 2 unilateral patients demonstrated combined hamartoma of the retina and retinal pigment epithelium (CHRRPE) and a retinal tuft, respectively. Isolated CHRRPE was noted in 3 eyes (25%) and a retinal tuft in 2 eyes (17%). Multiple retinal findings within the same eye occurred in 3 NF2 patients. By contrast, all 3 non-NF2 patients exhibited unilateral flame-shaped ERMs: 2 with CHRRPE and 1 isolated. OCT angiography performed in 4 patients revealed hyper-reflective foci anterior to the retinal nerve fibre layer in all 3 NF2 patients. During mean follow-up of 6.2 ± 3.4 years, findings remained stable in 78% of patients. One NF2 patient developed intraretinal cysts, while 1 non-NF2 patient underwent vitrectomy.
Conclusions
Flame-shaped ERMs are strongly associated with NF2, and bilateral retinal lesions were present in all NF2 patients. However, they can also occur unilaterally with or without CHRRPE in non-NF2 cases. Early recognition of flame-shaped ERMs enables timely and systematic NF2 evaluation.
期刊介绍:
Official journal of the Canadian Ophthalmological Society.
The Canadian Journal of Ophthalmology (CJO) is the official journal of the Canadian Ophthalmological Society and is committed to timely publication of original, peer-reviewed ophthalmology and vision science articles.