True about bone tumor is:
AGE Tumors 1st Decade Ewing's sarcoma (Can be 5-20 years), Unicameral Bone Cyst Retinoblastoma Rhabdomyosarcoma Metastasis from Neuroblastoma 2nd Decade Osteosarcoma (Can affect all ages) Aneurysmal Bone Cyst Giant cell tumor (20-40 years-classical is 30 years) Adamantinoma Enchondroma After 40Yrs Multiple myeloma >Chondrosarcoma. Note: Ewing's sarcoma is commonest bone tumor of 1st decade but its peak incidence is 2nd decade.
Ohopedics Oncology
Multiple myeloma is seen in more than 55 years age and above
Osteogenic sarcoma-fouh decade
Chondrosarcoma -first decade
Osteoclastoma- fifth decade
Multiple myeloma is seen in more than 55 years age and above