by drjamescwittigmd_4dcg6x | Oct 3, 2025 | Bone Tumors, Malignant Osseous
General Information An osteosarcoma is so called, because it is a cancerous tumor that is derived from a mesenchymal stem cell precursor (thus, by definition a sarcoma). The malignant cells produce immature woven bone, or osteoid, which is why the tumor is named...
by drjamescwittigmd_4dcg6x | Oct 3, 2025 | Bone Tumors, Malignant Osseous
General Information Intracortical osteosarcoma is an extremely rare type of osteosarcoma that arises within and is usually confined to the cortex of the bone. It is a high grade osteosarcoma that is confined to the cortex of a long bone Intracortical osteosarcoma is...
by drjamescwittigmd_4dcg6x | Oct 3, 2025 | Bone Tumors, Malignant Osseous
General Information High grade surface osteosarcoma is a type of high grade osteosarcoma that develops on the surface of the bone from the outer cortex. There is none to minimal medullary involvement The microscopic pathology is the same as a conventional osteosarcoma...
by drjamescwittigmd_4dcg6x | Oct 3, 2025 | Bone Tumors, Malignant Osseous
General Information Periosteal osteosarcoma is a distinct type of surface osteosarcoma (arises from the surface of the bone/periosteum) It arises from the inner layer of the periosteum and therefore elevates the periosteum and produces a periosteal reaction Periosteal...
by drjamescwittigmd_4dcg6x | Oct 3, 2025 | Bone Tumors, Malignant Osseous
General Information Parosteal osteosarcoma is a low grade, well differentiated fibroblastic tumor that produces bone/osteoid (immature woven bone). It arises from the surface of the bone, namely the outer layer of the periosteum. It is slow growing and slow to...
by drjamescwittigmd_4dcg6x | Oct 3, 2025 | Bone Tumors, Malignant Osseous
GENERAL INFORMATION Low Grade Intraosseous Osteosarcoma is a low grade malignant bone tumor that accounts for 1% to 2% of all Osteosarcomas. Constituent cells of the tumor form osteoid or immature woven bone. CLINICAL DATA • More frequent in second and...
