视网膜前出血预防视网膜下累及多层黄斑出血：巧合还是合理关联？
Preretinal hemorrhage preventing subretinal involvement in multilayer macular hemorrhages: coincidence or plausible relationship?
作者信息
Nascimento Priscila A, Carbajo Cristina N, Mendonça Luisa S M, Okimoto Juliana T, Barros Bogdan C M, Abucham-Neto Julio Z
机构信息
Department of Ophthalmology, Faculdade de Medicina Do ABC, Avenida Principe de Gales, 821, Santo André, SP, 0906065, Brazil.
Instituto Suel Abujamra, São Paulo, SP, Brazil.
出版信息
Int J Retina Vitreous. 2021 Mar 16;7(1):21. doi: 10.1186/s40942-021-00291-y.
BACKGROUND
To report four cases with interesting anatomical presentations of multilayer macular hemorrhages with preretinal hemorrhage possibly preventing subretinal involvement of the macular area.
CASES PRESENTATION
Observational study of four patients presenting with macular hemorrhages.
RESULTS
Four patients with multilayer macular hemorrhage due to different causes, presented with a halo-shaped submacular hemorrhage coincident with the preretinal hemorrhage borders. After resolution, in all cases, the macular area underneath the preretinal hemorrhage was found to be spared.
CONCLUSION
We hypothesized that an extensive preretinal hemorrhage can exert a mechanical force pushing the subretinal hemorrhage towards the periphery, consequently protecting the macular area.
背景
报告4例具有有趣解剖学表现的多层黄斑出血合并视网膜前出血病例，视网膜前出血可能阻止了黄斑区的视网膜下受累。
病例介绍
对4例出现黄斑出血的患者进行观察性研究。
结果
4例因不同原因导致多层黄斑出血的患者，均出现与视网膜前出血边界一致的晕状黄斑下出血。出血吸收后，所有病例中视网膜前出血下方的黄斑区均未受累。
结论
我们推测广泛的视网膜前出血可产生机械力，将视网膜下出血推向周边，从而保护黄斑区。
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