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.
This condition is a type of soft tissue sarcoma, which are cancers that affect skin, fat, muscle, and similar tissues. In dermatofibrosarcoma protuberans, the tumor most often starts as a small, firm patch of skin, usually 1 to 5 centimeters in diameter, that is usually purplish, reddish, or flesh-colored.The tumor typically grows slowly and can become a raised nodule.n dermatofibrosarcoma protuberans, the tumor has a tendency to return after being removed. However, it does not often spread to other parts of the body (metastasize). There are several variants of dermatofibrosarcoma protuberans in which different cell types are involved in the tumor.