Ewing's sarcoma Diagnosis

Ewing's sarcoma diagnosis is depend on some test include:

1. X-ray examination to diagnose: X-ray manifestations of Ewing's sarcoma is a wide range, according to a different location and not the same performance. Ewing's sarcoma occurs mainly in the backbone and the metaphysis, is divided into central and marginal. The other occurred in ribs, pelvis, scapula and spine. (see Type of Ewing's sarcoma base on occur location and performance)

2. Laboratory tests: There are anemia, leukocytosis and erythrocyte sedimentation rate to accelerate. Serum lactate dehydrogenase activity can be increased by as much as regular interleukin 1 ~ 30000. As a result of a large number of periosteal new bone formation, serum alkaline phosphatase may be mildly increased, and this diagnosis has great significance for adults. Glycogen-positive tumors, the reticulocyte and bone sarcoma of the different negative staining glycogen. Information is also mentioned in this week's positive test for the diagnosis of Ewing's sarcoma also have a certain value.

3. Metastasis: Ewing's sarcoma developed rapidly in early stage through extensive transfer of blood, often to the lungs, liver and other organs, but rarely to the regional lymph node metastasis. There are easy to transfer the tumor to other bones to other bones is clear that the tendency of violations, suggesting that its multi-center of origin.

4. Angiography: angiography for the diagnosis of very valuable. 90% of the lesions can show an increase and expansion of blood vessels.

5. CT and MRI: tumor can better determine the scope and circumstances of violations of the soft tissue. MRI tumor Department shows that extensive bone destruction, soft tissue mass was affected; in T1 weighted images showed homogeneous long T1 signal; in T2 weighted images showed high signal T2 long. Shown in the CT for bone tissue from the soft tissue mass, extensive destruction of bone.

6. Radionuclide bone scan: not only show the scope of the original lesions, but also other lesions found in the body.