text: <unk>  must be<unk> ed from other diseases such as: any type of bone lesions caused by infection and/or tumors. Features such as the eccentric location of the tumor in the metaphyseal portion of the bone and the skeletal location help to distinguish<unk>  from Ewing sarcoma. Bone metastases from other primary tumours, less frequent in the young than in adult patients, should also be considered.
option_0: Osteosarcoma differential diagnosis
option_1: Bone or cartilage mass differential diagnosis
option_2: Osteoma differential diagnosis
option_3: Osteochondroma differential diagnosis
option_4: Osteomyelitis differential diagnosis
option_5: Osteoma other diagnostic studies
option_6: Osteosarcoma risk factors
option_7: Osteoporosis differential diagnosis