DOI: 10.12890/2025_005061
Exploring ANCA Pathogenicity in Ulcerative Colitis: A Case Report Highlighting the Risk of Progression to ANCA-Associated Vasculitis
Authors
abir.hamid@ulb.be
Keywords
Anti-PR3, ANCA, ANCA-associated vasculitis, ulcerative colitis, diffuse alveolar haemorrhageAbstract
This case report addresses the association between ulcerative colitis and ANCA vasculitis-associated alveolar hemorrhage. A 20-year-old African woman with a history of ulcerative colitis with high PR3-ANCAs titer presented to the emergency department for chest pain, dyspnea, and hemoptysis in January 2022. A thoracic CT scan and bronchoalveolar lavage were compatible with alveolar hemorrhage. This case emphasizes the pathogenic kinetics of high ANCA titer in ulcerative colitis.
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