Pediatricsintermediate
Compare migratory polyarthritis and Sydenham chorea as manifestations of ARF.
Answer
Migratory polyarthritis is an acute inflammatory process of large joints that shifts between joints; affected joints may be hot, red, swollen, and tender. Sydenham chorea is a neurologic-behavioral manifestation with involuntary movements, facial grimacing, and possible school difficulties; movements worsen with stress and disappear during sleep.
Explanation
The two manifestations affect different systems and have distinct clinical patterns. Arthritis is characterized by migratory large-joint inflammation, while chorea is a movement and behavioral disorder. **Key takeaway:** Identify the affected system and characteristic pattern rather than treating all manifestations as interchangeable. **Glossary:** Arthralgia: joint pain; polyarthritis: inflammation of multiple joints.
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