Non-Ossifying Fibroma (NOF) is a non-neoplastic skeletal disorder characterized by fibrous proliferation in the metaphysis. It is also called FIBROUS CORTICAL DEFECT/ FIBROXANTHOMAS. As per WHO, NOF is not a true neoplasm but it is a developmental disorder. Etiology NOF is the most common skeletal lesion approximately 30 % in the first second decade. Trauma […]
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Giant Cell Tumor is the commonest benign tumor that is encountered by an orthopedic surgeon which consists of 5% of all skeletal tumors and 20% of all skeletal neoplasms. The peak incidence of this tumor occurs in skeletally mature individuals in 3rd decades of their lives. Female: Male= 1.5:1 GCT is seen in epiphysis after […]
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Osteoblastoma is the osteogenic fibroma of the bone which is vascular, benign, and bone-forming skeletal neoplasm. Histologically, Osteoblastoma resembles the nidus of Osteoid Osteoma but lacks reactive sclerosis. It accompanies 1 % of all primary bone tumors and 3 % of benign bone tumors. Generally, it is > 2 cm in diameter. Site The spine […]
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Osteoid Osteoma is defined as a bone-forming lesion that is generally less than 2 cm with central well-defined hypervascular areas of rarefaction (Nidus). It consists of Vascular fibrous tissue, proliferating fibroblasts, and minute spicules. Osteoid Osteoma consists of 10 % of benign bone tumors. Etiology There are different hypotheses: Age group: 5 – 30 years […]
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