Retrospective Study of Primary Intracranial Lymphoma Magnetic Resonance Imaging of 25 Cases
Abstract：Objective To investigate the clinical value of MRI diagnosis of primary intracranial lymphoma.Methods Retrospectively analyzing MRI data of 25 patients with primary lymphoma proved by surgery and pathology from January, 2012 to June, 2015 in the hospital.Comprehensive analysis of lesion size, location, shape and other MRI features, detection rate and its pathological characteristicswere done.Results 25 cases of primary lymphoma patients were non Hodgkin′s lymphoma, including 21 cases of single tumor, and 3 casesof multiple tumors.Tumors located in the frontal lobe, temporal lobe, basal ganglia and thalamus, cerebellar hemisphere were 8, 6, 5,4 and 2 cases; MRI signal features of 25 cases were as follows: (1)T1 WI showed equal signal in 14 cases, showed slightly lower signal in8 cases, and showed mixed signal in 3 cases; (2)T2 WI showed slightly high signal in 19 cases, showed equal signal in 3 cases and showeduniform mixed signal in 3 cases; (3)After enhanced scan, among all tumors, 20 cases were significantly enhanced, and 5 cases were uneven.There was “notch sign” in 12 cases, “sharp” sign in 10 cases, at the same time “notch sign” and “sharp sign” in 6 cases.21 casesof tumors showed edema.(4)DWI sequence scanning was used in 15 cases.The lesions had different degrees of diffusion.The tumor ADCvalue was (0.54 ~0.72) ×10 -3 mm/s, and the average value of ADC was (0.65 ±0.07) ×10 mm-3 /s.The MRI of this group of primarylymphoma tumor preoperative diagnosis rate was 72.0%.Conclusion The findings of intracranial primary lymphoma MRI imaging havecertain characteristics.Through a comprehensive analysis of the appearances of MRI, it can make accurate diagnosis of most lesions.
Keywords：MRIPrimary intracranial lymphomaImagingDiagnosis
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 639-641 )