Abstract
Abstract Background/Aims VEXAS syndrome, first described in 2020, is a haemato-inflammatory disease caused by a mutation in the gene-UBA1.This syndrome can coexist with or without Myelodysplastic syndrome. What makes this case interesting is its long and challenging diagnostic journey and the involvement of different clinical specialties such as dermatology, ophthalmology, rheumatology, respiratory, haematology, and stroke teams. Ultimately, two years after the initial presentation, this appeared to be the first case of VEXAS with confirmed genetic mutation in the region. VEXAS being a relatively new entity, treating clinician/s were not aware of the possibility initially. Therefore, spreading awareness regarding the clinical picture of VEXAS is prudent. This case report highlights rheumatological and dermatological manifestations of the disease to aid in the timely diagnosis and management of future cases. Methods We report a 74-year-old previously healthy male presented in 2021 with a rash on his legs, arms, and torso since October 2019. It was progressive, painful, palpable, erythematous, non-pruritic, intermittent rash, cleared with hyperpigmentation. He also had oligoarticular arthritis, constitutional symptoms, recurrent episodes of polychondritis, uveitis, bibasal lung fibrosis, and an ESR and CRP above 100. He also had lymphadenopathy above the diaphragm, but the biopsy only showed necrotic material, and the bone marrow biopsy did not show any features of haematological malignancy. After excluding infections, he was started on high-dose oral prednisolone for relapsing polychondritis. The skin and inflammatory markers improved immediately following high doses of steroids. However, whenever steroids were weaned down, even with the help of Methotrexate, his skin was flaring. He also had unprovoked DVT and, while on anticoagulation, developed occipital infarction. He had extensive skin involvement when he had to stop Methotrexate following a chest infection. Results The skin biopsy was inconclusive. There was no significant cytopenia but persistent macrocytosis even after stopping Methotrexate. As a result, he underwent a repeat bone marrow biopsy, which showed Vacuoles and gene UBA1 mutation in 2023. Conclusion The heterogeneity and complexity of the disease are due to multi-organ involvement, including skin, joints, eyes, lungs, blood vessels, and cartilage, simultaneously or cumulatively. Skin involvement in VEXAS can also be vast, ranging from neutrophilic dermatosis, erythema nodosum-like lesions, leukocytoclastic, or urticarial vasculitis. Cutaneous manifestations develop in the majority with VEXAS syndrome and can be the first presenting symptom in this new rare syndrome. Disclosure M. Gunawardena: None. L. Yalakki: None. R. Moitra: None. E.L. Williams: None. H. Wong: None. D. D'Cruz: None.
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