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Leukoencephalopathy and cerebral edema as the presenting manifestations of SLE in an ANA-negative adolescent female: A case report and review of literature

Pediatric Rheumatology, 2020

2020. This work is published under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;DOI: 10.21203/rs.2.22477/v2

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  • Title:
    Leukoencephalopathy and cerebral edema as the presenting manifestations of SLE in an ANA-negative adolescent female: A case report and review of literature
  • Author: Theisen, Alexandra ; Bose, Paroma ; Knight, Christina ; Oliver, Melissa
  • Subjects: Disease ; Edema
  • Is Part Of: Pediatric Rheumatology, 2020
  • Description: Background Systemic lupus erythematosus (SLE) is an autoimmune disease with various clinical manifestations involving multiple organ systems. Neuropsychiatric manifestations of SLE has been associated with increased morbidity and mortality, thus it is important to recognize and diagnosis the disease entity and treat early. When neuropsychiatric symptoms are involved, typically there are many other systemic features to aid in the diagnosis of SLE. Many autoantibodies have been discovered and are used to help diagnose SLE. The antibody present in most cases of pediatric SLE, as well as in many other rheumatic diseases, is the nonspecific antinuclear antibody (ANA), making it a commonly used screening tool by primary care physicians when evaluating a patient with a possible rheumatic disorder. However, a small subset of SLE patients, 1-5%, present with a negative ANA, and it is important to keep SLE on the differential diagnosis in specific instances when a thorough infectious and neurological workup has been completed and proven to be inconclusive. Case Presentation This case involves a Hispanic adolescent female with a negative ANA who presented with diffuse cerebral edema secondary to leukoencephalopathy due to SLE with central nervous system involvement. She had an extensive workup while inpatient involving metabolism, infectious disease, rheumatology, and neurology prior to obtaining the diagnosis of SLE. She was treated with both cyclophosphamide and rituximab and showed improvement. Conclusions A review of the literature revealed 8 cases with SLE presenting with or developing diffuse cerebral edema and/or leukoencephalopathy. Our patient’s case differs in that she was also ANA negative despite other autoantibody positivity. While she did have low complements and transient leukopenia, she did not present with other signs of organ involvement, which made the diagnosis of SLE with neuropsychiatric involvement quite challenging. We discuss the importance of keeping SLE on the differential despite a negative ANA in complex cases without any other cause and to consider initial screening with not only the ANA but also dsDNA and complements to avoid missed diagnoses.
  • Publisher: Durham: Research Square
  • Language: English
  • Identifier: DOI: 10.21203/rs.2.22477/v2
  • Source: Coronavirus Research Database
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