Cite this page: Bone forming tumors - general. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/bonetumorgeneral.html. Accessed October 27th, 2016.
Definition / General
- Most are benign, although they often are not biopsied
- Tumors in childhood are usually benign; tumors in elderly are usually malignant
- Some tumors (giant cell tumor, well differentiated cartilaginous tumors) have borderline features
- Important to be aware of patient age, bone involved, area of bone involved (epiphysis, metaphysis, diaphysis; cortex, medulla or periosteum) and radiologic appearance before making microscopic diagnosis
- Xrays are important to define the tumor’s location and aggressiveness, and are necessary to diagnose low grade cartilaginous tumors
- Clinical symptoms are usually not helpful in making a diagnosis