Bone-forming tumors

Bone-forming tumors are a subset of bone tumors that are characterized by their propensity to form excess osteoid. They can be further subdivided into benign and malignant tumors.

Benign tumors

Malignant tumors

Malignant bone-forming tumors are all osteosarcomas.

Some osteosarcomas predominantly form new bone on the surface of bones: