nBone tumors are very diverse in morphology and biological potential (can be no big deal or rapidly fatal) nMOST bone tumors are benign lesions nMost benign lesions are seen <30 years of age nA new bone tumor in the elderly is more likely to be malignant nNo bone is safe (though most primaries are in long bones) nLocale in the bone gives important Dx info nMore common benign lesions typically present as incidental findings (non-painful, stable size) nBe cautious wi ...