An acute angle (acute meaning sharp) is an angle smaller than a right angle (it is less than 90 degrees). Related pages[change | change source] This short article about mathematics can be made longer. You can help Wikipedia by adding to it.
Chondrosarcoma is a cancer composed of cells derived from transformed cells that produce cartilage. Chondrosarcoma is a member of a category of tumors of bone and soft tissue known as sarcomas. About 30% of skeletal system cancers are chondrosarcomas. It is resistant to chemotherapy and radiotherapy. Unlike other primary bone cancers that mainly affect children and adolescents, chondrosarcoma can present at any age.
Chondrosarcoma is the third most common primary bone malignancy after myeloma and osteosarcoma, accounting for approximately 20% of bone sarcomas and mainly affecting the middle-aged population. It comprises a heterogeneous group of neoplasms that are characterized by cartilage matrix production from the tumor cells -.