A sarcoma is a type of cancer that arises from connective tissues, such as bones, cartilage, fat, muscle, or blood vessels. Unlike carcinomas, which originate in epithelial tissues, sarcomas are more rare and can occur in various parts of the body. They are classified into different subtypes based on the specific tissue they affect and can be aggressive, requiring prompt diagnosis and treatment. Treatment options often include surgery, chemotherapy, and radiation therapy.