Histiocytoma, Benign FibrousHistiocytoma, Malignant FibrousHistiocytomaSoft Tissue NeoplasmsHistiocytic SarcomaSarcomaSkull NeoplasmsLiposarcomaRetroperitoneal NeoplasmsFemoral NeoplasmsAngiomatosisMyxosarcomaPiezosurgeryVascular NeoplasmsHeart NeoplasmsBone NeoplasmsGenital Neoplasms, MaleTracheobronchomegalyFatal OutcomeDog DiseasesNeoplasm Regression, SpontaneousThighGiant Cell TumorsFibromaHistiocytesMaxillary Sinus NeoplasmsImmunohistochemistryOrbital NeoplasmsSkin NeoplasmsDermatofibrosarcomaTomography, X-Ray ComputedOsteosarcomaCystadenocarcinomaLeiomyosarcomaNeoplasms, Multiple PrimaryChondrosarcomaMediastinal Neoplasms