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Retinal angiomatous proliferation (RAP) and other types of choroidal neovascularization (CNV) are very rarely reported in patients with retinitis pigmentosa (RP). We present a case report of a 91-year-old patient with an obvious RP phenotype, who presented with a sudden onset of vision worsening and metamorphopsia in the left eye. Genetic testing on the UK inherited retinal disease panel did not identify a pathogenic variant. Multimodal imaging comprising optical coherence tomography (OCT), OCT angiography, and fluorescein and indocyanine green angiography showed a RAP lesion in the left macula. The patient received three treatments of monthly injections of aflibercept, with excellent morphological and functional outcomes. Taking into account the patient's age at presentation of the RAP lesion, it is not clear whether the RAP was associated or coincidental with RP. This case report highlights the importance of possessing an awareness that RAP lesions can occur in RP. Moreover, due to a good response and potential safety concerns with continuous anti-VEGF injections in RP patients, a pro re nata (PRN) regimen might be the safest option.

Original publication

DOI

10.3390/genes14071438

Type

Journal article

Journal

Genes (Basel)

Publication Date

13/07/2023

Volume

14

Keywords

choroidal neovascularization (CNV), inherited retinal dystrophies (IRD), retinal angiomatous proliferation (RAP), retinitis pigmentosa (RP), Humans, Retinal Neovascularization, Fluorescein Angiography, Macular Degeneration, Retina, Retinitis Pigmentosa, Cell Proliferation