- Anterior chest wall pain and tenderness of the costochondral and costosternal regions, most often affecting the 2nd to the 5th costal cartilages
- System(s) affected: musculoskeletal
- Synonym(s): costosternal syndrome; parasternal chondrodynia; anterior chest wall syndrome
- Predominant age: 40 to 50 years
- Predominant gender: female
- 30% emergency room visits for chest pain
- 13% primary care visits for chest pain
Etiology and Pathophysiology
Although not fully understood, inflammation can be caused by pulling from adjoining muscles at costochondral or costosternal regions.
- Unusual physical activity or upper extremity overuse
- Recent trauma (including motor vehicle accident, domestic violence) or new-onset physical activity
- Recent upper respiratory infection (URI) with coughing
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