Analysis for Imaging Characteristics of Chordoma / 实用放射学杂志

ABSTRACT

Objective To discuss the imaging manifestations of chordoma.Methods The imaging manifestations of chordoma in 42 cases proved by surgery and pathology were retrospectively analysed.Results The lesions located at the region of skull base in 23 cases(54.8%),at the sacrococcygeal region in 18 cases(42.9%) and one case(2.3%) outside the axial skeleton as an extra-axial chordoma or parachordoma.Bone destruction in the areas near skull base and sacrococcygeal region could be found on radiography.On CT,chordoma typically appeared as a expansile soft-tissue mass that arises from the clivus and sacrococcygeal region with associated extensive lytic bone destruction.MR imaging was considerably superior to CT in the delineation of lesion extent.Conclusion Chordoma has typically distribution and characteristic imaging manifestations,especially MRI.