Osteosarcoma is a type of bone cancer that begins in the cells that form your bones. Osteosarcoma is most often found in the long bones in your arms and legs, though it can occur in any bone.
Osteosarcoma tends to occur in children and young adults, but it can also occur in older adults. Osteosarcoma treatment often involves surgery, chemotherapy and radiation therapy.
Read more about bone cancer.
DEFINITION Aortic valve stenosis — or aortic stenosis — occurs when the heart’s aortic valve narrows. This narrowing prevents the valve from opening fully, which obstructs blood flow from your heart into your aorta and onward to the rest of…
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