HemangioendotheliomaHemangioendothelioma, EpithelioidHemangiosarcomaMultidetector Computed TomographyNeoplasms, Vascular TissueVascular NeoplasmsHemangiomaBones of Lower ExtremityCell Line, TumorEndothelium, LymphaticLiver NeoplasmsLabyrinth DiseasesEar NeoplasmsSarcoma, KaposiBlue Toe SyndromeSpinal NeoplasmsFatal OutcomeTumor Markers, BiologicalTumor Cells, CulturedThoracic Vertebrae