X-ray examination to diagnosis for Chondrosarcoma:
1. Central. More common than peripheral to more primary. Primary, the tumor occurred in metaphysis medullary cavity, showing a single room or room-like translucent areas, irregular edge, during which a mixture of irregular calcification and bone chip. Sometimes we can see a lot of flocculent plaque calcification and ossification of bone covering the District, the formation of the shadow of the same density. Expansion of tumor growth, can cortical thinning, cortical perforation Once the tumor or complicated by pathological fractures, soft tissue tumor in invasive very quickly to form a soft tissue mass, which can be seen in scattered calcifications. As a result of stimulation of tumor, often multi-layered shaped subperiosteal new bone formation, so that thickening of cortical bone perforation or tumor new bone and a "cuff" sign. Secondary X-ray manifestations of cancer are: osteolytic tumors increased translucent shadow, edge blurred calcifications increased, calcification can be seen gathered piles dissolved shadow disappeared, the final tumor cortical perforation in the soft tissue calcification in the development and the formation of the shadow .
2. peripheral. Central-type rare soft. Secondary one more than the primary. Osteochondroma of the malignant transformation is often made in the original basis of osteochondroma cartilage cap show increased thickening to form a blurred mass of cartilage, and soft tissue tumor, the more amount of scattered punctate or flocculent irregular calcification, which can sometimes be long with thick new bone formation, bone trabecular part also shows signs of disorder and destruction. Apart from showing malignant chondroma outside a fast growing and can also be due to the destruction of the original tumor of the performance of the disappearance of typical chondroma. A small number of cases can occur cuff-like periosteal reaction.
Microscopic examination diagnosis for Chondrosarcoma:
The main showed the tumor tissue disorders, the cartilage cells of different sizes, and a small number of mucus-like cells, is widely scattered into the matrix of cartilage tissue. Part of cartilage with irregular calcification or ossification of the phenomenon. Different parts of the same tumor, the degree of differentiation may differ from each other observation needs to be carefully examined for confirm diagnosed.