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Chordoma

This article was last reviewed on December 21, 2018 by Bibianna Purgina, MD FRCPC Quick facts: Chordoma is a cancer that almost always starts in a bone. It is a type of cancer called a sarcoma. Most chordomas start in the bones at the base of the skull or the lower back. Normal bones Bones are …
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Chondrosarcoma

This article was last reviewed and updated on September 3, 2018 by Bibianna Purgina, MD FRCPC Quick facts: Chondrosarcoma is a cancer made up of cartilage. It is a type of cancer called a sarcoma. Chondrosarcomas can start within a bone or any other part of the body where cartilage is normally including the nose and …
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Osteosarcoma

This article was last reviewed and updated on August 29, 2018 by Bibianna Purgina, MD FRCPC Quick facts: Osteosarcoma is a type of bone cancer. It is the most common type of cancer to develop in a bone. Most patients with osteosarcoma are teenagers. The most common location is the upper leg. There are many …
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What is osteoid?

Osteoid is a chemical that the body uses to make bone. Osteoid is made by special cells called osteoblasts which are responsible for making new bone. When viewed under the microscope, new osteoid looks blue but later turns pink as minerals such as calcium are added to make it stronger. It is normal to find …
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