[Inflammatory rheumatism in children. Definitions and nosology]

Area of Science:

• Rheumatology and Immunology
• Pediatric Autoimmune Diseases

Context:

• Critically examines the nosology of chronic juvenile rheumatoid arthritis (JRA).
• Contrasts a pluralist, longitudinal concept with the conventional unicist view of JRA.
• Highlights the relationship between systemic JRA and abarticular hyperimmune syndromes.

Purpose:

• To propose a revised nosological framework for juvenile rheumatoid arthritis.
• To explore the concept of JRA as an articular immune reaction.
• To advocate for a broader, clinically-based definition of JRA in the absence of specific diagnostics.

Summary:

• The study argues against viewing JRA as a single entity, advocating for a pluralist perspective based on disease development.
• It posits that JRA and other inflammatory joint diseases share characteristics of articular immune responses to antigens.
• Clinical grounds are emphasized for defining JRA due to the lack of specific laboratory tests.

Impact:

• Suggests a more inclusive clinical definition for juvenile rheumatoid arthritis.
• Provides a new conceptual framework for understanding JRA and related inflammatory joint conditions.
• Contributes to the ongoing debate on the classification and understanding of pediatric rheumatic diseases.