Imaging manifestations of knee joint pigmented villonodular synovitis in children
Abstract：Objective To investigate the imaging manifestations of knee joint pigmented villlonodular synovitits (PVNS) in children. Methods The imaging manifestations of 8 children patients with PVNS who were confirmed by postoperative pathologic examination were retrospectively analyzed.The 8 patients underwent MRI examination of kuee joint,in whom,3 patients received enhancement scanning examination,7 patients received knee joint X-ray examination and 4 patients underwent knee joint ultrasonography.Results The X-ray examination results showed that there were 8 cases of joint capsule swelling (100%),1 case of articular facet hardening and vesicle changes,1 case of joint space medial narrowing and 1 case of patellar fat pad density increase. The ultrasonography demonstrated that there were 4 cases of combined joint effusion,3 cases of suprapatellar bursa extension,1 case of subpatellar bursa extension.MRI results showed that T1 weight image showed diffuse low signal intensity,T2 weight image and medic sequence showed low signal intensity. Conclusion The MRI has higher resolution for soft tissues,which has specificity in diagnosis of knee joint pigmented villlonodular synovitits in children.
Keywords：knee jointchildrenpigmented villlonodular synovititsiconographymagnetic resonance imaging
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 1043-1045,1050 )