Osteoblastoma

Osteoblastoma (formerly giant osteoid osteoma) is a benign tumor, but with local aggressiveness. It occurs in younger people in the long bones (as well as osteoid osteoma), in the spine, jaws and elsewhere. Unlike osteoid osteoma, which can be considered a more differentiated variant of the same process, it is found in the spongiosa. It is larger than 2 cm (about 4-5 cm), is not bordered by a sclerotic rim, is highly vascularized, and may contain a large number of giant multinucleated cells.

Related articles

 * Osteosarcoma
 * Osteoma
 * Osteoid osteoma
 * Mesenchymal tumors
 * Spinal tumors

Source

 * PASTOR, Jan. Langenbeck's medical web page [online]. [cit. 18.04.2010]. < https://langenbeck.webs.com/ >.