Clinicopathological features of epiretinal membranes in eyes filled with silicone oil

Yoshiaki Tanaka,1 Fumihiko Toyoda,1 Machiko Shimmura-Tomita,1 Nozomi Kinoshita,1 Hiroko Takano,1 Yoh Dobashi,2 Shigeki Yamada,2 Hiroto Obata,3 Akihiro Kakehashi1 1Department of Ophthalmology, Saitama Medical Center, Jichi Medical University, Saitama, Japan; 2Department of Pathology, Saitama Medical...

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Autores principales:	Tanaka Y, Toyoda F, Shimmura-Tomita M, Kinoshita N, Takano H, Dobashi Y, Yamada S, Obata H, Kakehashi A
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2018
Materias:	epiretinal membrane optical coherence tomography pathological feature rhegmatogenous retinal detachment silicone oil vitrectomy Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/0d874fcd6b4d4104b57b7a7b9d9a8904
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spelling	oai:doaj.org-article:0d874fcd6b4d4104b57b7a7b9d9a89042021-12-02T07:41:07ZClinicopathological features of epiretinal membranes in eyes filled with silicone oil1177-5483https://doaj.org/article/0d874fcd6b4d4104b57b7a7b9d9a89042018-10-01T00:00:00Zhttps://www.dovepress.com/clinicopathological-features-of-epiretinal-membranes-in-eyes-filled-wi-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Yoshiaki Tanaka,1 Fumihiko Toyoda,1 Machiko Shimmura-Tomita,1 Nozomi Kinoshita,1 Hiroko Takano,1 Yoh Dobashi,2 Shigeki Yamada,2 Hiroto Obata,3 Akihiro Kakehashi1 1Department of Ophthalmology, Saitama Medical Center, Jichi Medical University, Saitama, Japan; 2Department of Pathology, Saitama Medical Center, Jichi Medical University, Saitama, Japan; 3Department of Ophthalmology, Saitama Medical Center, Saitama Medical University, Kawagoe, Japan Purpose: The aim of this case series was to clarify the clinicopathological features of epiretinal membranes (ERMs) that developed in eyes after silicone oil (SO) tamponade to treat rhegmatogenous retinal detachments (RRDs). Patients and methods: In the Department of Ophthalmology, Saitama Medical Center, Jichi Medical University, patients with idiopathic ERMs (23 eyes) and ERMs in eyes filled with SO (SO ERMs) after vitreous surgery to treat RRDs (nine eyes) were enrolled from July 2012 to March 2014. ERM tissues obtained intraoperatively were examined histopathologically. Besides the main outcome measure of the pathological findings of the ERM tissues, other outcome measures included the preoperative findings on optical coherence tomography (OCT) images and the surgical findings. Results: Eight (89%) of nine eyes with SO ERMs had bilayered membranes composed of a firm layer on the retinal side with glial cells and extracellular matrix and a fragile sponge-like layer on the vitreous side. The sponge-like layer was composed of emulsified SO surrounded by macrophages. Quantitative analysis showed that the areas with cluster of differentiation 68 (CD68)-positive macrophages identified by immunohistochemistry in eyes with SO ERMs were significantly (P<0.001) larger than those in eyes with idiopathic ERMs. The findings on OCT images were consistent with the pathological features of the SO ERMs. Surgical removal of the SO ERMs was difficult because the sponge-like layer was fragile, and the underlying retina was also fragile due to inflammation. Conclusion: SO ERMs are bilayered membranes. Long-standing emulsified SO formed a sponge-like layer and SO (foreign body)-induced granulation and caused retinal inflammation in these eyes, making surgical removal difficult. A preoperative OCT examination is necessary to identify SO ERMs. Keywords: epiretinal membrane, optical coherence tomography, pathological feature, rhegmatogenous retinal detachment, silicone oil, vitrectomyTanaka YToyoda FShimmura-Tomita MKinoshita NTakano HDobashi YYamada SObata HKakehashi ADove Medical Pressarticleepiretinal membraneoptical coherence tomographypathological featurerhegmatogenous retinal detachmentsilicone oilvitrectomyOphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 12, Pp 1949-1957 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	epiretinal membrane optical coherence tomography pathological feature rhegmatogenous retinal detachment silicone oil vitrectomy Ophthalmology RE1-994
spellingShingle	epiretinal membrane optical coherence tomography pathological feature rhegmatogenous retinal detachment silicone oil vitrectomy Ophthalmology RE1-994 Tanaka Y Toyoda F Shimmura-Tomita M Kinoshita N Takano H Dobashi Y Yamada S Obata H Kakehashi A Clinicopathological features of epiretinal membranes in eyes filled with silicone oil
description	Yoshiaki Tanaka,1 Fumihiko Toyoda,1 Machiko Shimmura-Tomita,1 Nozomi Kinoshita,1 Hiroko Takano,1 Yoh Dobashi,2 Shigeki Yamada,2 Hiroto Obata,3 Akihiro Kakehashi1 1Department of Ophthalmology, Saitama Medical Center, Jichi Medical University, Saitama, Japan; 2Department of Pathology, Saitama Medical Center, Jichi Medical University, Saitama, Japan; 3Department of Ophthalmology, Saitama Medical Center, Saitama Medical University, Kawagoe, Japan Purpose: The aim of this case series was to clarify the clinicopathological features of epiretinal membranes (ERMs) that developed in eyes after silicone oil (SO) tamponade to treat rhegmatogenous retinal detachments (RRDs). Patients and methods: In the Department of Ophthalmology, Saitama Medical Center, Jichi Medical University, patients with idiopathic ERMs (23 eyes) and ERMs in eyes filled with SO (SO ERMs) after vitreous surgery to treat RRDs (nine eyes) were enrolled from July 2012 to March 2014. ERM tissues obtained intraoperatively were examined histopathologically. Besides the main outcome measure of the pathological findings of the ERM tissues, other outcome measures included the preoperative findings on optical coherence tomography (OCT) images and the surgical findings. Results: Eight (89%) of nine eyes with SO ERMs had bilayered membranes composed of a firm layer on the retinal side with glial cells and extracellular matrix and a fragile sponge-like layer on the vitreous side. The sponge-like layer was composed of emulsified SO surrounded by macrophages. Quantitative analysis showed that the areas with cluster of differentiation 68 (CD68)-positive macrophages identified by immunohistochemistry in eyes with SO ERMs were significantly (P<0.001) larger than those in eyes with idiopathic ERMs. The findings on OCT images were consistent with the pathological features of the SO ERMs. Surgical removal of the SO ERMs was difficult because the sponge-like layer was fragile, and the underlying retina was also fragile due to inflammation. Conclusion: SO ERMs are bilayered membranes. Long-standing emulsified SO formed a sponge-like layer and SO (foreign body)-induced granulation and caused retinal inflammation in these eyes, making surgical removal difficult. A preoperative OCT examination is necessary to identify SO ERMs. Keywords: epiretinal membrane, optical coherence tomography, pathological feature, rhegmatogenous retinal detachment, silicone oil, vitrectomy
format	article
author	Tanaka Y Toyoda F Shimmura-Tomita M Kinoshita N Takano H Dobashi Y Yamada S Obata H Kakehashi A
author_facet	Tanaka Y Toyoda F Shimmura-Tomita M Kinoshita N Takano H Dobashi Y Yamada S Obata H Kakehashi A
author_sort	Tanaka Y
title	Clinicopathological features of epiretinal membranes in eyes filled with silicone oil
title_short	Clinicopathological features of epiretinal membranes in eyes filled with silicone oil
title_full	Clinicopathological features of epiretinal membranes in eyes filled with silicone oil
title_fullStr	Clinicopathological features of epiretinal membranes in eyes filled with silicone oil
title_full_unstemmed	Clinicopathological features of epiretinal membranes in eyes filled with silicone oil
title_sort	clinicopathological features of epiretinal membranes in eyes filled with silicone oil
publisher	Dove Medical Press
publishDate	2018
url	https://doaj.org/article/0d874fcd6b4d4104b57b7a7b9d9a8904
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Clinicopathological features of epiretinal membranes in eyes filled with silicone oil

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