Overview of the radiology of juvenile idiopathic arthritis (JIA)
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Updated: Oct 17, 2026

Automated Joint Space Detection Improves Bone Segmentation Accuracy
Published on: November 28, 2025
P A Cohen1, C H Job-Deslandre, G Lalande
1Department of Radiology, St. Vincent de Paul Hospital, Paris, France.
Abstract:
Plain films remain the basic tool for diagnosis and follow-up evaluation of juvenile idiopathic arthritis (JIA). In this paper, we review the new classification of JIA: systemic arthritis. oligoarthritis (persistent), oligoarthritis (extended), polyarticular arthritis (rheumatoid factor negative), polyarticular arthritis (rheumatoid factor positive), enthesitis-related arthritis, psoriatic arthritis and unclassified arthritis. We will also review regional abnormalities of three stages: an early stage, an intermediate stage, a late stage, as well as the differential diagnosis.
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