Imaging characteristics of chondrosarcoma
Nong Cuizhen
Yu Jieyang
Abstract：Objective To analyze the imaging features of chondrosarcoma.Methods Inaging data of 30 patients with chondrosarcoma from February 2010 to January 2014 were retrospectively analyzed.Forteen patients underwent digital X-ray camera system (DR), CT and magnetic resonance imaging (MRI), 12 underwent DR and CT examination, 4 patients underwent CT and MRI;enhanced CT was performed in 9 cases and enhanced MRI was performed in 3 cases.The imaging features were analyzed.Results Most of the chondrosarcomas originated from pelvis triangle.According to the clinical pathological type, 26 cases were primary type (including 3 of conventional type, 1 of mucinous type, 1 of clear cell type and 1 of de-differentiation type) and 4 cases were secondary type.In X-ray image, scallop like compression destruction of the bone was shown in 3 cases of common type and 1 case of clear cell type.In CT, the lesions manifested as low or slightly low density masses;the spotty, arcus, cyclic and villous calcifications were scattered in the lesions in 23 cases of common types and 1 tpye of mucinous type.In MRI, the chondrosarcomas of common type manifested as isointense or slight low signal in T1 weighted imaging (T1 WI) and isointense or slight high signal in T2WI;the chondrosarcomas of mucinous type manifested as isointense or low hybrid signal in T1 WI and slight low or high hybrid signal in T2WI;the calcifications in T2WI showed as low signal;the chondrosarcomas of de-differentiation type mainly manifested as low signal with sporadic patchy slight high signal in T1WI and a biphasic sign of uneven high signal in T2WI;the chondrosarcomas of clear cell type showed homogeneous isointensity signal on T1 WI and T2 WI, with scallop like impression on the edge.In 9 cases undergoing enhanced CT and 3 cases undergoing enhanced MRI, annular and septal moderate enhancement were observed in common type and secondary type;inhomogeneous moderate enhancement with small room enhancement scattering was observed in de-differentiation type and mucous type.Conclusions CT and X-ray are the preferred method to diagnose chondrosarcoma;MRI shows the lesions range more clearly and accurately, and can provide important reference for clinical treatment.
Keywords：ChondrosarcomaX-raysTomographycomputedMagnetic resonance imaging
Publication Date：2015-01-01
Online Publishing Date：2026-09-14(First online date of this platform, not the publication date of the document)
Pages：4( 1638-1641 )