MyofibromaNeoplasms, Plasma CellSpindle ApparatusAdenoma, OxyphilicHistiocytic Disorders, MalignantPerivascular Epithelioid Cell NeoplasmsNevus, Spindle CellPlasmacytomaMuscle SpindlesSkin NeoplasmsImmunohistochemistryNeoplasms, Muscle TissueSarcomaHistiocytic SarcomaLymphomaTumor Markers, BiologicalThyroid NeoplasmsNose NeoplasmsMicrotubulesS100 ProteinsMitosisKidney NeoplasmsFatal OutcomeSarcoma, KaposiCarcinosarcomaTesticular NeoplasmsNeoplasms, Germ Cell and EmbryonalAPUD CellsLeukemiaGranuloma, Plasma CellLipomaSarcoma, SynovialSolitary Fibrous TumorsAnaphaseKinetochoresBiopsy, Fine-NeedleSoft Tissue Neoplasms