High fever (at least 102.2) for minimum of 2 weeks
Faint erythematous macular coalescing rash on the trunk, palms, soles
Arthritis (usually polyarticular)
May also have hepatosplenomegaly, lymphadenopathy, pleuritis, pericardial effusion
Juvenile idiopathic arthritis
Acute rheumatic fever
Reactive arthritis
Developmental dysplasia of hip
Rheumatoid arthritis
Femur fracture
Reactive poststreptococcal arthritis
Systemic lupus erythematosus