Pectus carinatum PC, or pigeon chest is a chest wall deformity where there is overgrowth of the cartilage between the ribs and the sternum breastbonecausing the middle of the chest to stick out. PC is most common in adolescent males, and 90 per cent of cases are diagnosed after children are 11 years old. The condition becomes more noticeable during puberty when the body goes through a growth spurt.
Tietze syndrome is characterized by mild to severe localized pain and tenderness in one or more of the upper four ribs. The second or third ribs are most often affected. In most people, the cartilage of only one rib is affected.
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The bones of the chest — namely the rib cage and spine — protect vital organs from injury, and also provide structural support for the body. Flexible yet strong, the rib cage protects major vital organs such as the heart, lungs, and liver. Contrary to urban legend and some religious beliefs, women do not have more ribs than men. A typical rib cage has 24 ribs.
The sternum, or breastboneis a flat bone at the front center of the chest. The ribs and sternum make up what is called the 'ribcage. The sternum is attached to the first seven ribs and also to the clavicle, or collarbone.
The clavicle or collarbone is a long bone that serves as a strut between the shoulder blade and the sternum or breastbone. There are two clavicles, one on the left and one on the right. The clavicle is the only long bone in the body that lies horizontally.
Costochondritis most commonly affects the upper ribs on the left-hand side of your body. Pain is often worst where the rib cartilage attaches to the breastbone sternumbut it can also occur where the cartilage attaches to the rib. Costochondritis kos-toe-kon-DRY-tis is an inflammation of the cartilage that connects a rib to the breastbone sternum.
The sternum or breastbone is a long flat bone located in the central part of the chest. It connects to the ribs via cartilage and forms the front of the rib cagethus helping to protect the heartlungsand major blood vessels from injury. Shaped roughly like a necktieit is one of the largest and longest flat bones of the body. Its three regions are the manubrium, the body, and the xiphoid process.
Michaeleen Doucleff. Engineers made the implant with a metallic 3-D printer that melts titanium powder. CSIRO hide caption.
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