ChondrosarcomaChondrosarcoma, MesenchymalChondromaBone NeoplasmsEnchondromatosisChordomaMyxosarcomaFemoral NeoplasmsSkull Base NeoplasmsCartilageExostoses, Multiple HereditaryOsteosarcomaRibsTomography, X-Ray ComputedPelvic BonesNeoplasms, Connective and Soft TissueFatal OutcomeMaxillary NeoplasmsChondromatosis, SynovialOsteochondromaChondroitinases and Chondroitin LyasesProteoglycansSpinal NeoplasmsSkull NeoplasmsHumerus