You're in the shower when your fingers brush over something unexpected: a small lump under your skin that wasn't there before. Your mind immediately races-Is this serious? Could it be cancer? It's ...

A sarcoma is a term for a broad group of cancers that start in the bones or soft tissue, such as muscle, fat, blood vessels, nerves, tendons and joints. One of the signs of a sarcoma is a lump that ...