HEAD NECK
OSTEOLOGY OF HEAD NECK
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Medullary cavity
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compact bone
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periosteum
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metaphysis
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Detailed explanation-1: -Osteosarcoma is a type of bone cancer that begins in the cells that form bones. Osteosarcoma is most often found in the long bones-more often the legs, but sometimes the arms-but it can start in any bone. In very rare instances, it occurs in soft tissue outside the bone.
Detailed explanation-2: -Osteosarcoma is a type of bone cancer that usually develops in the osteoblast cells that form bone. It happens most often in children, adolescents, and young adults. Approximately 800 new cases of osteosarcoma are reported each year in the U.S. Of these cases, about 400 are in children and teens.
Detailed explanation-3: -These bone cancers develop in the medullary cavity of a long bone, such as the femur. Additionally, there are a number of subtypes of intramedullary osteosarcoma, each based on the type of cells that make up the tumor. Common subtypes include osteoblastic, condroblastic, fibroblastic, small-cell and epithelioid.
Detailed explanation-4: -Overview. Bone cancer can begin in any bone in the body, but it most commonly affects the pelvis or the long bones in the arms and legs. Bone cancer is rare, making up less than 1 percent of all cancers. In fact, noncancerous bone tumors are much more common than cancerous ones.