Rapidly Progressive Lupus Nephritis With Concurrent Anti-GBM and ANCA Positivity: A Rare Case Report.

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Titel: Rapidly Progressive Lupus Nephritis With Concurrent Anti-GBM and ANCA Positivity: A Rare Case Report.
Autoren: Cao TT; Allergy and Clinical Immunology Department, Hanoi Medical University, Hanoi, Vietnam., Pham HT; Allergy and Clinical Immunology Center, Bach Mai Hospital, Hanoi, Vietnam., Bui VK; Allergy and Clinical Immunology Center, Bach Mai Hospital, Hanoi, Vietnam., Nguyen TMH; Allergy and Clinical Immunology Department, Hanoi Medical University, Hanoi, Vietnam.; Allergy and Clinical Immunology Center, Bach Mai Hospital, Hanoi, Vietnam., Ly VP; Allergy and Clinical Immunology Department, Hanoi Medical University, Hanoi, Vietnam., Bui VD; Allergy and Clinical Immunology Department, Hanoi Medical University, Hanoi, Vietnam.; Department of Allergy, Immunology and Dermatology, e Hospital, Hanoi, Vietnam., Thai NH; Allergy and Clinical Immunology Center, Bach Mai Hospital, Hanoi, Vietnam., Nguyen MH; Allergy and Clinical Immunology Center, Bach Mai Hospital, Hanoi, Vietnam., Nguyen HP; Allergy and Clinical Immunology Department, Hanoi Medical University, Hanoi, Vietnam.; Allergy and Clinical Immunology Center, Bach Mai Hospital, Hanoi, Vietnam.
Quelle: Case reports in nephrology [Case Rep Nephrol] 2025 Sep 09; Vol. 2025, pp. 4767868. Date of Electronic Publication: 2025 Sep 09 (Print Publication: 2025).
Publikationsart: Case Reports; Journal Article
Sprache: English
Info zur Zeitschrift: Publisher: Wiley Country of Publication: United States NLM ID: 101598418 Publication Model: eCollection Cited Medium: Print ISSN: 2090-6641 (Print) Linking ISSN: 2090665X NLM ISO Abbreviation: Case Rep Nephrol Subsets: PubMed not MEDLINE
Imprint Name(s): Publication: 2023- : [Hoboken, NJ] : Wiley
Original Publication: New York, NY : Hindawi Pub. Corp.
Abstract: Background: Rapidly progressive lupus nephritis (LN) with concurrent positivity for anti-glomerular basement membrane (anti-GBM) antibodies and antineutrophil cytoplasmic antibodies (ANCAs) represents an exceptionally rare and severe autoimmune overlap. Early identification and timely intervention are critical to prevent irreversible renal damage. Case Presentation: A 23-year-old woman with systemic lupus erythematosus presented with acute kidney injury, nephrotic-range proteinuria, pancytopenia, and a SLEDAI score of 41. Serologic tests revealed high-titer anti-GBM antibodies and dual ANCA positivity (MPO and PR3) by the ELISA technique. Although the patient experienced mild hemoptysis and a significant drop in hemoglobin, MSCT of pulmonary vasculature and parenchyma did not reveal alveolar hemorrhage or vascular lesions. Due to contraindications to renal biopsy, she was empirically treated with pulse-dose corticosteroids and plasma exchange, followed by oral corticosteroids and mycophenolate mofetil. Anti-GBM antibodies became undetectable after seven sessions. The patient achieved full clinical, biochemical, and renal remission within 2 months. Conclusion: This case highlights the importance of early serologic evaluation and prompt immunosuppressive therapy in rapidly progressive LN with anti-GBM/ANCA overlap, particularly when histopathological confirmation is not feasible.
(Copyright © 2025 Thi Trinh Cao et al. Case Reports in Nephrology published by John Wiley & Sons Ltd.)
Competing Interests: The authors declare no conflicts of interest.
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Entry Date(s): Date Created: 20250918 Date Completed: 20250918 Latest Revision: 20250920
Update Code: 20260130
PubMed Central ID: PMC12440640
DOI: 10.1155/crin/4767868
PMID: 40964236
Datenbank: MEDLINE
Beschreibung
Abstract:Background: Rapidly progressive lupus nephritis (LN) with concurrent positivity for anti-glomerular basement membrane (anti-GBM) antibodies and antineutrophil cytoplasmic antibodies (ANCAs) represents an exceptionally rare and severe autoimmune overlap. Early identification and timely intervention are critical to prevent irreversible renal damage. Case Presentation: A 23-year-old woman with systemic lupus erythematosus presented with acute kidney injury, nephrotic-range proteinuria, pancytopenia, and a SLEDAI score of 41. Serologic tests revealed high-titer anti-GBM antibodies and dual ANCA positivity (MPO and PR3) by the ELISA technique. Although the patient experienced mild hemoptysis and a significant drop in hemoglobin, MSCT of pulmonary vasculature and parenchyma did not reveal alveolar hemorrhage or vascular lesions. Due to contraindications to renal biopsy, she was empirically treated with pulse-dose corticosteroids and plasma exchange, followed by oral corticosteroids and mycophenolate mofetil. Anti-GBM antibodies became undetectable after seven sessions. The patient achieved full clinical, biochemical, and renal remission within 2 months. Conclusion: This case highlights the importance of early serologic evaluation and prompt immunosuppressive therapy in rapidly progressive LN with anti-GBM/ANCA overlap, particularly when histopathological confirmation is not feasible.<br /> (Copyright © 2025 Thi Trinh Cao et al. Case Reports in Nephrology published by John Wiley & Sons Ltd.)
ISSN:2090-6641
DOI:10.1155/crin/4767868