Histiocytoma, Benign FibrousHistiocytoma, Malignant FibrousHistiocytomaBone and BonesBone RemodelingSoft Tissue NeoplasmsBone NeoplasmsBone DensityBone DevelopmentHistiocytic SarcomaSarcomaBone ResorptionSkull NeoplasmsBone DiseasesLiposarcomaRetroperitoneal NeoplasmsFemoral NeoplasmsTarsal BonesFemurAngiomatosisBone MarrowTomography, X-Ray ComputedMyxosarcomaHaversian SystemBone TransplantationPiezosurgeryTibiaBone Marrow CellsSkullVascular NeoplasmsHeart NeoplasmsGenital Neoplasms, MaleFatal OutcomeCalcification, PhysiologicDog DiseasesTracheobronchomegalyOsteoblastsPaleontologyFractures, BoneNeoplasm Regression, SpontaneousOsteogenesisGiant Cell TumorsImmunohistochemistryThighFibromaHistiocytesOsteosarcomaMaxillary Sinus NeoplasmsOrbital NeoplasmsSkin NeoplasmsDermatofibrosarcomaBone RegenerationOsteoporosisOsteoclastsBone MatrixOsteocalcinCystadenocarcinomaBone Marrow TransplantationWeight-BearingBiomechanical PhenomenaChondrosarcomaLeiomyosarcomaNeoplasms, Multiple PrimaryFossilsMediastinal NeoplasmsNeoplasms, Radiation-InducedSpinal Neoplasms