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

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.