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A case of VEXAS syndrome associated with EBV-associated hemophagocytic lymphohistiocytosis

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TLDR
In this article, the first case of EBV-associated hemophagocytic lymphohistiocytosis (HLH) was described in a patient diagnosed with VEXAS syndrome.
Abstract
Vacuoles, E1, X-linked, autoimmunity, somatic (VEXAS) syndrome is characterized by a pathogenic mutation in UBA1, which leads to protean complications including autoimmunity and myelodysplasia. A 56-year-old man with steroid-dependent, later steroid-refractory cutaneous polyarteritis nodosa and Sweet syndrome developed recurrent daily fever, macrocytic anemia, thrombocytopenia, acute hypoxic respiratory failure, and anasarca. He was eventually diagnosed with Epstein-Barr virus (EBV) viremia and hemophagocytic lymphohistiocytosis (HLH). He improved clinically with rituximab, ruxolitinib, and increased glucocorticoids before expiring from Pseudomonas sepsis. UBA1 exon 3 mutational analysis in myeloid enriched peripheral blood revealed a c.122T>C (p.Met41Thr) pathogenic variant, consistent with VEXAS syndrome. We describe the first case of EBV-associated HLH in a patient diagnosed with VEXAS syndrome. Early identification of this syndrome will be important in order to offer potential therapies before life-threatening complications arise.

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Journal ArticleDOI

Vasculitis associated with VEXAS syndrome: A literature review

TL;DR: Vasculitis can be an initial manifestation of VEXAS syndrome, a novel autoinflammatory syndrome that connects seemingly unrelated conditions: inflammatory syndromes and hematologic disorders (myelodysplastic syndrome or multiple myeloma).
Journal ArticleDOI

Mimickers of Large Vessel Giant Cell Arteritis

TL;DR: The main differential diagnoses to be considered regarding large vessel vasculitis are proposed, including cranial GCA, large-vessel GCA and associated polymyalgia rheumatica.
Journal ArticleDOI

Pulmonary manifestations in VEXAS (vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic) syndrome: a systematic review

TL;DR: In this article , a systematic review aimed to summarize respiratory manifestations in VEXAS syndrome described to date, and the most frequently described pulmonary manifestation was infiltrates (43.1%, n = 116), followed by pleural effusion (7.4%), nonspecific interstitial pneumonia (n = 1), bronchiolitis obliterans (N = 3), pulmonary vasculitis (N 3), bronchiectasis (N 2 ), alveolar haemorrhage (N 1 ), pulmonary embolism (N 4 ), bronchial stenosis (N 5 ), and alveolitis (N 0.3%).
Journal ArticleDOI

JAK inhibitors for the treatment of VEXAS syndrome

TL;DR: In this paper , the authors carried out a brief literature review that includes cohorts and single cases in which JAK-I were adopted as a promising strategy to manage VEXAS patients.
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Somatic mutations in VEXAS Syndrome and Erdheim-Chester disease: Inflammatory myeloid diseases.

TL;DR: The impact of causal and associated somatic mutations in VEXAS and ECD at both clinical and molecular levels are discussed.
References
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Journal ArticleDOI

Adult haemophagocytic syndrome

TL;DR: Analysis of the genetic and molecular pathophysiology of these syndromes have improved the understanding of the crosstalk between lymphocytes and histiocytes and their regulatoty mechanisms, and it is essential to initiate appropriate treatment and improve the quality of life and survival of patients with this challenging disorder.
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Development and validation of the HScore, a score for the diagnosis of reactive hemophagocytic syndrome.

TL;DR: Because it has no unique clinical, biologic, or histologic features, reactive hemophagocytic syndrome may be difficult to distinguish from other diseases such as severe sepsis or hematologic malignancies.
Journal ArticleDOI

Somatic Mutations in UBA1 and Severe Adult-Onset Autoinflammatory Disease.

TL;DR: Using a genotype-driven approach, this disorder is identified that connects seemingly unrelated adult-onset inflammatory syndromes and is named the VEXAS (vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic) syndrome.
Journal ArticleDOI

Treatment of Epstein Barr virus-induced haemophagocytic lymphohistiocytosis with rituximab-containing chemo-immunotherapeutic regimens

TL;DR: Examination of laboratory data obtained prior to and within 2–4 weeks after the first rituximab dose revealed significant reductions in EBV load and serum ferritin levels, which support the incorporation of ritUXimab into future prospective clinical trials for patients with EBV‐HLH.