OSTEOSARCOMA: BONE CANCER

The osteosarcoma is the primary bone tumor most common. It usually affects young people and reached most often the knees, thighs and arms. Treatment of bone cancer that usually combines chemotherapy, radiotherapy and surgery.

-Osteosarcoma, a primary bone cancer
-The first signs of osteosarcoma
-Diagnosis and treatment of osteosarcoma

BONE CANCER

Osteosarcoma, a primary bone cancer

The osteosarcoma is one of the primary cancers of the bone, that is to say developed from bone cells, cartilage or fibrous tissue, as opposed to secondary cancers of the bone metastases that are of cancer in another organ. The osteosarcoma is primary bone cancer the most common, before the chondrosarcoma, Ewing’s sarcoma and multiple myeloma . Of unknown cause, osteosarcoma usually occurs in children and young adults, between 10 and 25 years.

The bones are usually affected long bones near the knee or shoulder: tibia, femur and humerus. We traditionally distinguish two forms of osteosarcoma: one attacks the central part of the bone (medullary bone), the other in the peripheral zone of the bone, destroying the periosteum, the membrane that surrounds the bone and is responsible for its growth in thickness. You should also remember that osteosarcoma can spread through the bloodstream and invade the lungs causing pulmonary metastases.

The first signs of osteosarcoma

As with all bone cancers, the first symptoms suggesting a tumor are a manifestation of unexplained persistent bone pain, which is due to tissue inflammation and swelling. The symptom is the occurrence of an invoice bone, again unexplained, that is to say, occurred in connection with minor trauma, or even in the absence of shock. Indeed, developing, tumor cells destroy surrounding tissue, making the bones extremely fragile.

Diagnosis and treatment of osteosarcoma

The diagnosis of osteosarcoma is based on radiography coupled with the biopsy in order to highlight the nature cancer of the cells. It should also check for the presence of metastases, including lung. Combined with chemotherapy, the tumor is usually removed by surgery. There is generally a tissue ablation widest possible. However, care is taken to maintain sufficient tissue to be able to ask a prosthetic joint. As for the amputation, it may be necessary if large tumor or recurrence.