Adenosine deaminase 2 deficiency in a Chinese patient: Report of one novel mutation and literature review

Author:

Yuxuan Bai12,Yan Duan2

Affiliation:

1. Graduate School Inner Mongolia Medical University Hohhot China

2. Dermatology Department People's Hospital of Inner Mongolia Autonomous Region Hohhot China

Abstract

AbstractObjectiveThrough a case of deficiency of adenosine deaminase 2 (DADA2) to improve domestic clinicians' understanding of the disease, and to review the literature, promote dermatologists for clinical secondary primary lesion diagnosis.MethodAnalysis of a case diagnosed with DADA2 deficiency of clinical manifestations, laboratory, imaging examination and treatment methods, and discussion through literature analysis.ResultsThe child with recurrent fever, limbs nodular erythema, gradually in the limbs. CT of lower limb skin showed mild edema of the spinous layer, intact basal layer, dilated vascular congestion in the superficial dermis, visible RBC extravasation, and changes of telangiectasia ring purpura were considered. Cranial magnetic resonance imaging (MRI) showed a left choroidal cleft cyst. Genetic test was the CECR1 mutation. The treatment with adalimumab was effective.ConclusionIn this case, DADA2 is the seventh case in China, and the CECR1 mutation site (c.254A> T p.N85I,c.851G>T p. G284V) was a compound heterozygous mutation. Mastering the clinical characteristics is helpful for clinicians to diagnose this disease.

Publisher

Wiley

Subject

Dermatology

Reference37 articles.

1. Mechanisms of vascular inflammation in deficiency of adenosine deaminase 2 (DADA2)

2. Vasculopathy, Immunodeficiency, and Bone Marrow Failure: The Intriguing Syndrome Caused by Deficiency of Adenosine Deaminase 2

3. Research progress in the immunomodulatory function of adenosine deaminase;Jing X;Chin J Microbiol Immunol,2020

4. Early-Onset Stroke and Vasculopathy Associated with Mutations in ADA2

5. Childhood adenosine deaminase 2 deficiency in 2 cases and literature review;Cui B;Chin J Appl Clin Pediatr,2020

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