Objective To investigate the diagnostic value of MRI for abdominal localized Castleman's disease(LCD). Methods The MRI data of 7 pathologically confirmed abdominal LCD cases were analyzed retrospectively. Results Among the 7 cases,5 cases were located in the retroperitoneal space,one case was located in the hepatogastric space,and one case was in the mesostenium. Besides,6 cases showed kidney-shaped appearance and one case showed dumbbell-shaped appearance. All cases had clear boundary. The maximum diameters of the tumor was 4.2-8.6 cm,with an average of 5.9 cm. For the unenhanced MRI scan,all 7 cases showed intermediate signal intensity on T1WI and rela-tively high signal intensity on T2WI. The inner signal was homogenous in 6 cases and was inhomogenous in one case. For diffusion weighted imaging (DWI),all cases showed high signal intensity of different degrees. Small satellite nodes of spotted or striped shapes were observed in the margin areas of all cases. On dynamic enhanced MRI,the lesions of all 7 cases showed intermediate to high enhancement on the artery-phase,and persistent high enhancement on the venous-phase. Moreover,the enhancement of 6 cases were homogenous and one case was inhomogenous,without any detectable enhanced necro-tic or cystic area. Finally,the enhancement of peripheral satellite nodes was similar with the main lesions. Obvious enhancement of nutritious vessels was observed in two cases. Conclusion MRI can detect some pathological changes of abdominal LCD and is important for the disease diagnosis and differential diagnosis.