Morning Stiffness Lasting >1 in Pediatrics — 10yo Child | Pediatric Rheumatology | SMLE Q#773
SMLE Question #773
Pediatrics
Pediatric Rheumatology
Last updated: February 2026
A 10-year-old girl has 3 weeks of high-grade intermittent fever, a transient erythematous rash on the face and trunk, and migratory swelling and stiffness of the wrists, knees, ankles, and proximal interphalangeal joints with morning stiffness lasting >1 hour. Her parents report painless cervical lymph node enlargement. Examination shows generalized cervical and axillary lymphadenopathy. Rheumatoid factor and ANA are negative. What is the most likely diagnosis?
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