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The long bone category includes the femora, tibiae, and fibulae of the legs; the humeri, radii, and ulnae of the arms; metacarpals and metatarsals of the hands and feet, the phalanges of the fingers and toes, and the clavicles or collar bones. The long bones of the human leg comprise nearly half of adult height.
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]
The bone showed typical characteristics of cancer, including areas of cortical destruction, neoplastic bone formations, and disordered organization inconsistent with a simple fracture or infection. The structural and histological similarities with a high-grade human osteosarcoma case strengthened the diagnosis.
Around 550 cases of primary bone cancer – a cancer that begins in the bones – are diagnosed in the UK each year
Bone metastasis, or osseous metastatic disease, is a category of cancer metastases that result from primary tumor invasions into bones. 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 ...
The spongiosa of the stalk continues with the underlying cancellous bone. Fractures within the stalk causes fibroblastic proliferation and formation of a new bone. Development of bursa takes place over the osteochondroma, which is attached to the perichondrium of the cap. Inflammation of the bone is indicated by the bursal wall lined by the ...
Fibrosarcoma (fibroblastic sarcoma) is a malignant mesenchymal tumour derived from fibrous connective tissue and characterized by the presence of immature proliferating fibroblasts or undifferentiated anaplastic spindle cells in a storiform pattern. Fibrosarcomas mainly arise in people between the ages of 25 and 79. [1]
The diagnosis of synovial sarcoma is typically made based on histology and is confirmed by the presence of t(X;18). [6] This translocation event between the SS18 gene on chromosome 18 and one of 3 SSX genes (SSX1, SSX2 and SSX4) on chromosome X causes the presence of an SS18-SSX fusion gene. The resulting fusion protein brings together the ...