nOsteosarcoma, Mandible
n6% arise in jaw
nMandible/maxillary 10 yrs later peak than other
nOsteoblastic, chondroblastic, fibroblastic
nOsteoblastic most common in mandible
nBlastic, mixed, lytic
nSpiculated, sunburst periosteal reaction
nSymmetric widening of peridontal membrane early sign
nBetter prognosis than maxillary
nSurgical excision, XRT, +/- chemo
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