ChondrosarcomaChondrosarcoma, MesenchymalChondromaBone NeoplasmsEnchondromatosisChordomaMyxosarcomaCartilageFemoral NeoplasmsSkull Base NeoplasmsExostoses, Multiple HereditaryNeoplasms, Connective and Soft TissueOsteosarcomaRibsPelvic BonesChondroitinases and Chondroitin LyasesChondromatosis, SynovialProteoglycansOsteochondromaMaxillary NeoplasmsRare DiseasesSensitivity and SpecificityDrug Approval