See below: Pleurisy is inflammation of the lining of the lungs and chest (the pleura) that leads to chest pain (usually sharp) when you take a breath or cough. Costochondritis is a benign inflammation of the costal cartilage, which is a length of cartilage which connects each rib, except the eleventh and twelfth, to the sternum. It causes pain in the chest that can be reproduced by pressing on the ribs.
Answered 4/19/2016
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