This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Musculoskeletal  disorders, Subject name: Pediatrics
The highest risk of uveitis in Juvenile idiopathic ahritis (JIA) is associated with _______ 
Select and explain. 
A. RF positive polyahritis, B. Systemic JIA, C. ANA-positive oligoahritis, D. Enthesis-related ahritis
C: ANA-positive oligoahritis
Answer: C: ANA-positive oligoahritis 
Explanation: ANA positive oligoahritis is associated with the highest risk for uveitis. The presence of a positive antinuclear antibody (ANA) confers increased risk for uveitis in children with JIA and requires periodic slit-lamp examination. Ref: Nelson textbook of pediatrics 21st edition Pgno: 1260, 1261