Villegas Victor M, Monroig Armando L, Aguero Lazaro H, Schwartz Stephen G
Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Naples, FL, USA.
Case Rep Ophthalmol Med. 2017;2017:1368581. doi: 10.1155/2017/1368581. Epub 2017 Oct 9.
Optical coherence tomography angiography (OCT-A) is a recently established noninvasive technology for evaluation of the retinal and choroidal vasculature. The literature regarding the findings in choroidal nevi is scarce. We report the OCT-A findings associated with two different variants. Subject one had decreased vascular flow signal in the choroidal, choriocapillaris, deep retinal, and superficial retinal layers. Subject two had decreased vascular flow signal in the choroidal, choriocapillaris, and deep retinal layers with a normal vascular flow signal in the superficial retinal layer. To our knowledge, these patterns of decreased vascular flow signals have not been previously reported using OCT-A. This may be due to blockage from the choroidal nevus, true diminished blood flow (ischemia), or other factors.
光学相干断层扫描血管造影（OCT-A）是一种最近建立的用于评估视网膜和脉络膜血管系统的非侵入性技术。关于脉络膜痣相关发现的文献很少。我们报告了与两种不同变体相关的OCT-A发现。受试者一在脉络膜、脉络膜毛细血管、视网膜深层和视网膜浅层的血管血流信号减少。受试者二在脉络膜、脉络膜毛细血管和视网膜深层的血管血流信号减少，而视网膜浅层的血管血流信号正常。据我们所知，使用OCT-A之前尚未报道过这些血管血流信号减少的模式。这可能是由于脉络膜痣的阻塞、真正的血流减少（缺血）或其他因素。
