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An osteoid osteoma is a benign (non-cancerous) bone tumor that arises from osteoblasts and some components of osteoclasts. It was originally thought to be a smaller version of an osteoblastoma. Osteoid osteomas tend to be less than 1.5 cm in size. The tumor can be in any bone in the body but are most common in long bones, such as the femur and ...
The tumor may be localized at the end of the long bone (commonly in the metaphysis). Most often it affects the proximal end of tibia or humerus , or distal end of femur . Osteosarcoma tends to affect regions around the knee in 60% of cases, 15% around the hip , 10% at the shoulder , and 8% in the jaw .
A bone tumor is an abnormal growth of tissue in bone, traditionally classified as noncancerous (benign) or cancerous (malignant). [1] [4] Cancerous bone tumors usually originate from a cancer in another part of the body such as from lung, breast, thyroid, kidney and prostate. [1] There may be a lump, pain, or neurological signs from pressure. [1]
When a person has primary bone cancer, the cancer cells are bone cells that have become cancerous. According to the NHS , around 550 cases of primary bone cancer are diagnosed each year in the UK.
Osteoblastoma can occur in persons of any age, although the tumors predominantly affect the younger population (around 80% of these tumors occurs in persons under the age of 30). No racial predilection is recognized. It usually presents in the vertebral column or long bones. [6] [7] Approximately 40% of all osteoblastomas are located in the spine.
Symptoms may include: [citation needed] Pain that may occur at the site of the tumor if the tumor is very large, or if the affected bone has weakened causing a fracture of the affected bone; Enlargement of the affected finger; Slow bone growth in the affected area; The symptoms of enchondroma may resemble other medical conditions or problems.
Bone-originating primary tumors such as osteosarcoma, chondrosarcoma, and Ewing sarcoma are rare; the most common bone tumor is a metastasis. [1] Bone metastases can be classified as osteolytic, osteoblastic, or both. Unlike hematologic malignancies which originate in the blood and form non-solid tumors, bone metastases generally arise from ...
Ewing’s sarcoma of bone is the most common of the EFTs and tends to occur in the trunk and long bones. The cancer most often occurs in the shaft, or diaphysis, of bones, as compared to other common bone cancers. The most common presenting symptom is pain in the bone, and the initial diagnostic step is imaging, often both MRI and radiograph.