A chondroma is a benign cartilaginous tumor, which is encapsulated with a lobular growing pattern.
Chondrocytes, the cartilaginous cells, resemble normal cells and produce the cartilaginous matrix.
Characteristic features of this tumor include the vascular axes within the tumor, which make the distinction with normal hyaline cartilage.
Based upon location, a chondroma can be described as an enchondroma or ecchondroma.
enchondroma – tumor grows within the bone and expands it
ecchondroma – grows outward from the bone and is rare.
Treatment
Best left alone – if it causes fractures,enchondroma,or is unsightly it should be removed by curettage and the defect filled with bone graft.