Oligoarticular juvenile idiopathic arthritis (JIA) is the most common subtype of juvenile idiopathic arthritis, a chronic autoimmune disorder affecting children under the age of 16.…
Enthesitis-related juvenile idiopathic arthritis (ERA-JIA) is a distinct subtype of juvenile idiopathic arthritis (JIA) that primarily affects the entheses—where tendons and ligaments attach to bones.…