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[Vasculitis: New nomenclature of the Chapel Hill consensus conference 2012]
1Konsultations- und Referenzzentrum für Vaskulitisdiagnostik, Institut für Pathologie, Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Deutschland, konstanze.holl-ulrich@uksh.de.
Insights
The 2012 Chapel Hill Consensus Conference nomenclature updates vasculitis classification, separating ANCA-associated vasculitis and replacing eponyms with systematic names for better clarity in understanding these inflammatory vessel diseases.
Area of Science:
- Rheumatology
- Immunology
- Pathology
Context:
- Vasculitis classification has evolved significantly.
- Previous nomenclature lacked clarity on etiopathology and disease course.
- The 2012 Chapel Hill Consensus Conference (CHCC) aimed to address these limitations.
Purpose:
- To present the revisions in the 2012 CHCC nomenclature for vasculitis.
- To summarize recent advances in understanding vasculitis etiopathology and disease courses.
- To highlight the inclusion of clinically relevant but less common vasculitis types.
Summary:
- The 2012 CHCC nomenclature distinguishes anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis from immune complex small vessel vasculitis.
- Eponyms like Wegener's granulomatosis are replaced by systematic names such as granulomatosis with polyangiitis.
- The revised nomenclature incorporates updated knowledge on disease mechanisms and inflammation types, alongside vessel characteristics.
Impact:
- Facilitates a more precise understanding of vasculitis subtypes and their underlying mechanisms.
- Improves diagnostic accuracy and therapeutic strategies for vasculitis patients.
- Provides a standardized framework for research and clinical practice in vasculitis.
Abstract:
Within the last years, many advances have been made in the understanding of the etiopathology of vasculitis as well as of different disease courses. The revised 2012 Chapel Hill consensus conference (CHCC) nomenclature reflects current knowledge on the etiopathology in addition to the descriptive principles of vessel size and types of inflammation. The anti-neutrophil cytoplasmic antibody (ANCA)-associated forms of vasculitis have been separated as a group, as opposed to immune complex small vessel vasculitis. When consensus was achieved eponyms have been replaced by systematic names, such as granulomatosis with polyangiitis (Wegener's granulomatosis) or eosinophilic granulomatosis with polyangiitis (Churg-Strauss syndrome). Moreover, clinically important but less well-known types of vasculitis have now been included in the CHCC nomenclature. This article presents the changes and summarizes the results of important new articles on the clinical picture and morphology of vasculitis.
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