Smooth Muscle TumorLeiomyomaLeiomyosarcomaLeiomyomatosisUterine NeoplasmsMuscle, SmoothMuscle NeoplasmsAngiomyomaNeoplasms, Muscle TissueMuscle, Smooth, VascularGastrointestinal NeoplasmsMyometriumMyocytes, Smooth MuscleIntestinal NeoplasmsImmunohistochemistrySoft Tissue NeoplasmsMusclesMuscle ContractionDesminSoft Tissue InjuriesMuscle ProteinsSoft Tissue InfectionsMuscle, SkeletalTumor Markers, BiologicalSarcomaCells, Cultured