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. 2021 Nov 17;11:43. doi: 10.1186/s12348-021-00274-y

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© The Author(s) 2021

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 13 — Serpiginous choroiditis - Parallel images of intermediate phase ICGA (left column), late phase ICGA (middle column) and 6x6mm OCT-Angiography (right column) of the right eye during follow-up

ICGA of the right eye reveals macular hypofluorescent lesions better seen in the intermediate phase ICGA (left column) corresponding to choroidal hypo or non-perfused areas. These lesions increase in size and number (A) (B) (C) until aggressive immunosuppression is introduced (D); OCT-A pictures evolve in parallel with ICGA frames with faint dark areas visible (A, B, and C – right column), and disappearing after aggressive immunosuppression is introduced (D, right); involvement of extended areas depending on larger vessels, probably precapillary arterioles, are needed to produce a drop-out on OCT-A.