Canadian Medical Guide > Diseases > Neoplasms > Neoplasms by Histologic Type > Neoplasms, Connective and Soft Tissue > Neoplasms, Connective Tissue > Neoplasms, Bone Tissue Terms and Definitions

Neoplasms, Bone Tissue

Medical Definition:	Neoplasms composed of bony tissue, whether normal or of a soft tissue which has become ossified. The concept does not refer to neoplasms located in bones.
Guide Notes:	neoplasms composed of bone tissue, NOT neoplasms located in bones ( = BONE NEOPLASMS): TN 135; /blood supply /chem /second /secret /ultrastruct permitted; coord IM with precoord organ/neopl term (IM); restricted use: Manual 24.2.2.5; DF: NEOPL BONE TISSUE
Previously Indexed:	Bone Neoplasms (1966-1993)

Neoplasms, Bone Tissue Categories.

	Fibroma, Ossifying - A benign, relatively slow-growing, central bone tumor, usually of the jaws (especially the mandible) which is composed of fibrous connective tissue within which bone is formed. (Dorland, 27th ed)
	Osteoblastoma - A benign, painful, tumor of bone characterized by the formation of osteoid tissue, primitive bone and calcified tissue. It occurs frequently in the spine of young persons. (From Dorland, 27th ed; Stedman, 25th ed)
	Osteochondroma - A cartilage-capped benign tumor that often appears as a stalk on the surface of bone. It is probably a developmental malformation rather than a true neoplasm and is usually found in the metaphysis of the distal femur, proximal tibia, or proximal humerus. Osteochondroma is the most common of benign bone tumors.
	Osteoma - A benign tumor composed of bone tissue or a hard tumor of bonelike structure developing on a bone (homoplastic osteoma) or on other structures (heteroplastic osteoma). (From Dorland, 27th ed)
	Osteosarcoma - A sarcoma originating in bone-forming cells, affecting the ends of long bones. It is the most common and most malignant of sarcomas of the bones, and occurs chiefly among 10- to 25-year-old youths. (From Stedman, 25th ed)

Neoplasms, Bone Tissue Medical Definitions and Terms

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