BONE LESION

Bone lesion on x-ray rule out osteomyelitis & secondary metastases non-aggressive exostotic osteochondroma narrow < less than 1mm margin reactive bone formation asymptomatic &/or non-active bone scam unicameral bone cysts aneurysmal bone cysts non-ossifying fibroma symptomatic &/or active bone scan inflammartory appearance osteoid osteoma (nidus appearance) osteoblastoma (maybe malignant or sclerotic in appearance) non-inflammatory appearance chondroblastoma chondromyxoid fibroma aggressive broad or indistinct margin soft tissue invasion benign no bone mineralization enchondroma (can calcify turn malignant) giant cell tumor (soap bubble appearance) malignant bone mineralization constitutional symptoms codman's triangle excessive scalloping & destruction of bone osteosarcoma (popcorn appearance) ewings sarcoma