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Giant-cell tumor of the bone (GCTOB), is a relatively uncommon bone tumor. It is characterized by the presence of multinucleated giant cells ( osteoclast -like cells). Malignancy in giant-cell tumor is uncommon and occurs in about 2% of all cases.
A non-ossifying fibroma (NOF) is a benign bone tumor of the osteoclastic, giant cell-rich tumor type. [1] It generally occurs in the metaphysis of long bones in children and adolescents. [2] Typically, there are no symptoms unless there is a fracture. [2]
X-ray of a giant cell bone tumor in the head of the 4th metacarpal of the left hand. An arm bone tumor. Bone tumors are traditionally classified as noncancerous (benign) or cancerous (malignant). [1] Several features of bone tumors and soft tissue tumors overlap. [7] Their classification was revised by the World Health Organization (WHO) in ...
A giant cell (also known as a multinucleated giant cell, or multinucleate giant cell) is a mass formed by the union of several distinct cells (usually histiocytes), often forming a granuloma. [ 1 ] Although there is typically a focus on the pathological aspects of multinucleate giant cells (MGCs), they also play many important physiological roles.
Tenosynovial giant cell tumor (TGCT) is a non-malignant tumor defined histologically as inclusions of “osteoclast-like” multinucleated giant cells, hemosiderin, and macrophages. [1] This histology can present one of 2 clinically distinct ways. TGCT tumors often develop from the lining of joints (also known as synovial tissue).
An aneurysmal bone cyst can arise from a pre-existing chondroblastoma, a chondromyxoid fibroma, an osteoblastoma, a giant cell tumor, or fibrous dysplasia. A giant cell tumor is the most common cause, occurring in 19–39% of cases. Less frequently, it results from some malignant tumors, such as osteosarcoma, chondrosarcoma, and ...
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