Sharabati I, Ayesh BM, Qafesha RM, Rasras H, Abunejma FM, Abdulrazzak M, Jobran AW. Central retinal artery occlusion in a child with ADA2 deficiency: a case report.
Ann Med Surg (Lond) 2024;
86:2343-2347. [PMID:
38576931 PMCID:
PMC10990381 DOI:
10.1097/ms9.0000000000001857]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 02/12/2024] [Indexed: 04/06/2024] Open
Abstract
Introduction and importance
Deficiency of ADA2 (DADA2) is the first molecularly described monogenic vasculitis syndrome. During the past decade, DADA2's clinical spectrum has expanded significantly as the number of reported cases has increased.
Case presentation
A 5-year-old boy with DADA2 who experienced sudden onset left-sided vision loss due to unilateral central retinal artery occlusion. The patient had a history of recurrent fever and arthralgia with high inflammatory markers (C-reactive protein and erythrocyte sedimentation rate). Brain MRI showed mild limbic encephalitis, and MRA was normal. His gene sequencing results demonstrated substitutions mutation in ADA2, and the diagnosis of DADA2 was eventually confirmed.
Clinical discussion
Central retinal artery occlusion (CRAO) in paediatrics is a very rare condition. Typically, DADA2 presents in childhood as systemic inflammation, vasculitis, humoral immunodeficiency, and/or haematologic abnormalities. The most common phenotype described in the literature is vasculitis, which typically affects the skin and central nervous system, but other systems can also be affected. Ophthalmic manifestations are less common and highly variable.
Conclusions
DADA2 manifests rarely with central retinal artery occlusion; therefore, physicians should be aware of this manifestation.
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