Which physical finding supports a diagnosis of costochondritis in a patient with chest pain?

Which physical finding supports a diagnosis of costochondritis in a patient with chest pain?

• A. Painful palpation of the costochondral joints
• B. Painful on deep inspiration
• C. Decreased breath sounds
• D. Normal chest x-ray

Answer: (A)

The key finding here is tenderness when you press directly over the costochondral joints. This localized, reproducible chest wall pain points to inflammation of the costochondral junctions, which is characteristic of costochondritis. Pain with palpation reflects a musculoskeletal source of chest pain, helping distinguish it from heart or lung problems. By contrast, pain with deep inspiration can occur with pleuritic or pulmonary conditions, decreased breath sounds suggest a lung issue like effusion or pneumothorax, and a normal chest x-ray is common in costochondritis but not diagnostic on its own. So, reproducible painful palpation of the costochondral joints best supports the diagnosis.

The key finding here is tenderness when you press directly over the costochondral joints. This localized, reproducible chest wall pain points to inflammation of the costochondral junctions, which is characteristic of costochondritis. Pain with palpation reflects a musculoskeletal source of chest pain, helping distinguish it from heart or lung problems. By contrast, pain with deep inspiration can occur with pleuritic or pulmonary conditions, decreased breath sounds suggest a lung issue like effusion or pneumothorax, and a normal chest x-ray is common in costochondritis but not diagnostic on its own. So, reproducible painful palpation of the costochondral joints best supports the diagnosis.