2024年2月15日 · Osteosarcoma happens when the cells that grow new bone form a cancerous tumor. In children and teens, osteosarcoma often happens at the ends of long bones, where bone...

2023年12月22日 · The cancer cells might form a mass called a tumor. The tumor can grow to invade and destroy healthy body tissue. In time, cancer cells can break away and spread to other parts of the body. When cancer spreads, it's called metastatic cancer. Risk factors. Most people with osteosarcoma don't have any known risk factors for the cancer.

Osteosarcoma is cancer that begins in your bones, usually in the arms or legs. Limited movement, bone pain, a lump and an unexplained broken bone are the most common symptoms. Many treatments are available. Around 7 in 10 people survive if the osteosarcoma doesn’t spread to other parts of their bodies.

2020年10月24日 · Osteosarcoma, or osteogenic sarcoma, is the most common primary malignant bone tumor, accounting for approximately 20% of all cases. Osteosarcoma demonstrates a bimodal age distribution and most commonly occurs in the extremities.[1]

Osteosarcoma (also called osteogenic sarcoma) is the most common type of cancer that starts in the bones. The cancer cells in these tumors look like early forms of bone cells that normally help make new bone tissue, but the bone tissue in an osteosarcoma is not as strong as that in …

An osteosarcoma (OS) or osteogenic sarcoma (OGS) is a cancerous tumor in a bone. Specifically, it is an aggressive malignant neoplasm that arises from primitive transformed cells of mesenchymal origin (and thus a sarcoma) and that exhibits osteoblastic differentiation and produces malignant osteoid. [1]

Osteosarcoma is the most common type of bone cancer that often develops in the osteoblast cells that form new bone. The bone the cancer cells make is not as strong as normal bone. Osteosarcoma is not a common cancer. About 1,000 new cases of osteosarcoma are reported each year in the U.S. It happens most often in children, teens, and young adults.

2024年10月28日 · Osteosarcomas are bulky tumors where a heterogeneous cut surface demonstrates areas of hemorrhage, fibrosis, and cystic degeneration. Their extension within the medullary cavity is often much more extensive than the bulky part of the tumor would suggest.

Osteosarcoma is an aggressive bone cancer. This type of cancer occurs when a bone-forming cell starts growing out of control, making a malignant (cancerous) tumor in the bone. Cancers that start elsewhere in the body and then metastasize (spread) to bone are much more common than tumors that actually start in bone.

An osteosarcoma is so called, because it is a cancerous tumor that is derived from a mesenchymal stem cell precursor (thus, by definition a sarcoma). The malignant cells produce immature woven bone, or osteoid, which is why the tumor is named osteosarcoma--it is a bone-producing sarcoma.