Histiocytoma, Benign FibrousHistiocytoma, Malignant FibrousHistiocytomaSoft Tissue NeoplasmsSarcomaSoft Tissue InjuriesSoft Tissue InfectionsLiposarcomaHistiocytic SarcomaSkull NeoplasmsRetroperitoneal NeoplasmsFemoral NeoplasmsBone NeoplasmsAngiomatosisMyxosarcomaVascular NeoplasmsPiezosurgeryThighFatal OutcomeDog DiseasesHeart NeoplasmsLeiomyosarcomaGenital Neoplasms, MaleFibromaGiant Cell TumorsTomography, X-Ray ComputedTracheobronchomegalyNeoplasm Regression, SpontaneousImmunohistochemistryOrbital NeoplasmsMaxillary Sinus NeoplasmsHistiocytesSkin NeoplasmsDermatofibrosarcomaOsteosarcomaChondrosarcomaCystadenocarcinomaNeoplasms, Multiple PrimaryPalate, SoftSpinal NeoplasmsMediastinal NeoplasmsNeoplasm Recurrence, LocalFibrosarcomaNeoplasms, Radiation-InducedMagnetic Resonance ImagingVimentin