Giant cell tumor of bone Diagnosis
Giant cell tumor of bone is diagnosed by X-ray, CT, MRI and more.
1. X-ray film performance: showed partial epiphysis cystic change, the general showed osteolytic destruction, but also a "bubble"-like change, and its expansion is generally limited cartilage. Do not break into the joints, little periosteal reaction, tumor clearly, when the initial issuance of the lesion within the epiphyseal side, the development can be accounted for after the end of all bone, thinning of cortical bone expansion, and some can be pierced into the soft tissue. X-ray films to show its general features, but still not enough to diagnosis.
2. CT check: CT examination to determine tumor border for more than X-ray radiography and tomography. Showed substantial changes in the tumor, CT value and muscles is similar to. Sometimes contain cysts tumors, but few as aneurysmal bone cyst like to see the liquid plane. Bone response to normal cortical shell with a different, less calcification, CT check for a clear and articular cartilage and articular cavity and the extent of soft tissue tumor helpful, a new type of double-helical CT through the intravenous injection of contrast agent may at all levels to carry out the reconstruction of blood vessels within the tumor may be for arteriography.
3. Magnetic resonance imaging (MRI): Magnetic resonance imaging is the best giant cell tumor of bone imaging methods, it has a high contrast and resolution. Tumor in the longitudinal relaxation time (T1-weighted image) showed low-intensity signal. Performance in the transverse relaxation time for the high-intensity signal. MRI showed no bone in the assault and the extent of the joints involved an edge, and CT for the observation of cortical bone damage and the response has the characteristics of the shell. MRI and CT for the early detection of tumor recurrence is very useful to the vast majority of lesions ranging from the number of organizations and the survival of the mixed composition of necrotic tissue. This MRI signal changes its uneven, high signal and low signal areas and white existence.