<prompt> Radiological feature of osteosarcoma is:New bone formationSunray appearanceCotton wool app.Osteoid formation  <response>: B i.e. Sunray appearance The X Ray findings of osteosarcomas are characterized by: Variable mixture of radiopacities due to osteogenesis radiolucencies due to destructive change replacement by radiolucent osteoid - Sun Burst Sun ray appearanceQ - Codmans triangleQ also found in infection Ewings SA so not specific Disease Radiological Feature Osteosarcoma Variable mixture of radiopacities radiolucency hallmark2 Sun burstsun ray appearanceQ IInd Codmans triangleQ non specific Osteoclastoma Soap Bubble appearanceQ Ewings Sarcoma Onion peel appearanceQ Pagets disease In Osteolytic Hot phase - Advancing wedgeBlade of GrassCandle flame appearance Mn ABC In Mixed phase - Cotton Ball SkullQ - Picture Frame VeebraeQ In Cool Phase - Bowing - Bone density increased 