Application of MSCT Scanning in the Diagnosis of Juxta-Articular Bone Cyst

Abstract：Objective：To evaluate the MSCT features of the juxta-articular bone cyst（intraosseous ganglion）,and improve imaging diagnosis ability of disease.Methods：The clinical and MSCT findings of 32 patients with intraosseous ganglion confirmed by operation and pathology were retrospectively analyzed.20 males,12 females,mean age 42 years old.Results：There were 32 lesions,including 8 femoral head,8 proximal ends of tibia,6 talus,3 distal ends of the tibia,3 lunate,1 distal ends of the femoral,1 acetabula,1 proximate end of the humerus,and 1 scaphoid.32 lesions located in the adjacent articular surface,the size ranged from 0.8cm × 1.2cm～2.5cm × 2.9cm.Among the 32 lesions,28 lesions were unilocular,28 lesions revealed a round,ellipsoidal or irregular low-density area with a full rim of sclerotic on CT,no joint spaces were abnormal;6 lesions were multiloculated-cystic,showed thick or thin septa at lesions.18 cases were the penetrability,showed an intraosseous ganglion communication with adjacent joint or with intrasoft-tissue ganglion on CT;14 cases were idiopathic,showed a single lesion in the adjacent articular surface.Conclusion：The characteristic locations and the typical MSCT features combined with the age of patient and clinical manifestations,it is possible to make a correct diagnosis of intraosseous ganglion.