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  • Title: A Rare Presentation of Cryoglobulinemic Vasculitis Associated with Primary Sjögren's Syndrome.
    Author: Metyas C, Lee JD, Jun JA, Arkfeld DG.
    Journal: Curr Rheumatol Rev; 2024 Sep 11; ():. PubMed ID: 39313873.
    Abstract:
    INTRODUCTION: Sjögren's syndrome is a chronic autoimmune disorder that results in dry eyes and mouth. It is rarely associated with cryoglobulinemia, the agglutination of cryoglobulins at cold temperatures that leads to systemic inflammation and organ damage. We have, herein, presented a case of Cryoglobulinemic Vasculitis (CryoVas), which presents as cryoglobulinemic glomerulonephritis and Central Nervous System (CNS) vasculitis and peripheral neuropathy. CASE REPORT: A 52-year-old woman with a past medical history of Sjögren's syndrome was admitted to the intensive care unit with severe hyponatremia, orthopnea, and progressive lower extremity weakness, and was found to have an intradural extramedullary hematoma with mass effect in the thoracic spine and diffuse hyperintense cord signal abnormality in thoracic spine suggestive of intermixed proteinaceous or hemorrhagic material. Further testing demonstrated that the patient experienced worsening neuropathy, proteinuria, hematuria, declining renal function, and the presence of cryoglobulins in the blood. After a thorough examination and a renal biopsy, the patient was diagnosed with cryoglobulinemic glomerulonephritis and cryoglobulinemic vasculitis of the spine. The patient was treated with rituximab and pulse-dose steroids, with which the patient exhibited improved renal function and resolution of a previously seen intradural hematoma on repeat MRI. CONCLUSION: We have, herein, discussed a rare case of cryoglobulinemic vasculitis that has led to a rare CNS manifestation and concomitant cryoglobulinemic glomerulonephritis. This suggests that clinicians should consider cryoglobulinemic vasculitis as the etiology that could manifest with multiorgan involvement, especially in patients with underlying rheumatic diseases.
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