MRI diagnostic value to primary central nervous system lymphoma

Objective To explore the MRI characteristics of primary central nervous system lymphoma so as to improve its preoperative diagnostic level.Methods The MRI data from 15 cases of primary central nervous system lymphoma confirmed by surgery were retrospectively analyzed.The location,morphology and signals of the lesions were studied.Results The lesion was presented as an oval mass with slight or middle edema(73.6%) and slight space-occupying effect.On plain MRI scans,all lesions presented as slight hypo-or isointensity on T1WI,and most lesions were iso-or slight hyperintensity on T2WI and FLAIR images.Most of the lesions were obviously homogeneously enhanced when MRI scans were strengthened.Conclusion The MRI imaging of primary central nervous system lymphoma has some specificity.It has the predictive role in primary central nervous system lymphoma diagnosis when combined with the site of tumor and the patients' age.