Pain

Chest pain that mimics a heart attack

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Illustration of a human chest cavity with callouts pointing to the ribs, sternum, and costal cartilage, where inflammation caused by costochondritis can occur.My sister went to the emergency room because she thought she was having a heart attack, but she ended up being diagnosed with costochondritis. What is that?

Possible causes include physical strain (such as heavy lifting or strenuous exercise) or trauma (such as a blow to the chest). Even severe coughing may cause costochondritis. The condition may be related to an underlying musculoskeletal condition such as arthritis or a joint infection. But in most cases, the underlying cause remains a mystery.

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