I'm a 22 year old female and today I noticed for the first time a small lump (about the size of a pea) near the centre of my chest. It feels like bone.
The xiphoid process is a small extension of bone just below the sternum. Discomfort in the xiphoid process can be painful as it can affect the lower ribcage, breastbone, and several major muscles located around the abdomen and diaphragm. Pain in the xiphoid process is described as.
Learn about chest wall tumors, diagnosis, and treatment. these tumors tend to be a lump on the chest wall surface or a growth that invades the bone or muscle.