NCIt definition : A common, benign cartiliginous neoplasm arising from the metaphysis of bone. The tumor
grows on the surface of the bone; it may be pedunculated or sessile. It is characterized
by the presence of chondrocytes, a cartilage cap, and a fibrous perichondrium that
extends to the periosteum of the bone. In some cases, there is deletion of 8q24.1
chromosome locus.;
Alternative definition : CDISC: A benign cartiliginous neoplasm arising from the metaphysis of bone.;