Sacral Primary Tumors:X-ray and CT Manifestations / 实用放射学杂志

ABSTRACT

Objective To analyse the X-ray and CT manifestations of sacral primary tumor.Methods 10 cases with sacral primary tumors verified by pathology,including sacral chordoma(n=5),giant cell tumor(n=2),chondrosarcoma(n=2),neurilemmomas(n=1),were analysed retrospectively.Results (1)The manifestations of CT and X-ray of sacral chordoma presented as a midline destructive lesion,involving prominently at sacrum 3～5,with flocculent calcification and irregular bone crests.(2)Giant cell tumor involved predominately sacrum 1～3 with expansile destructive area and commonly in young adults.(3)Chondrosarcoma and neurilemmomas had difference characteristic on X-ray film and CT.One case with chondrosarcoma had bone destruction in sacrum 1～3 and giant mass grow into pelvis.Conclusion CT combined with X-ray film is helpful in diagnosis and differential diagnosis of sacral primary tumors.