Imaging Diagnosis of Primary Brain Iymphoma / 实用放射学杂志

ABSTRACT

Objective:To describe the imaging findings of primary brain lymphoma in immunologically normal patients.Methods:The clinical manifestations and imaging findings of 5 patients operated with pathological proved primary brain lymphoma were reviewed.Results:In 5 cases,4 patients were men and one was woman.The median age was 47(range 34 to 63 years).Pathological diagnosis was compatible with primary non-Hodgkins lymphoma of brain for all five patients.Primary brain lymphoma may be soiltary or mutiple and locate at supratentorial or infratentorial.Lesions presented as an isodense to hyperdense on CT scan,hypointense on T1-weighted images and isointense or hyperintense to gray matter on T2-weighted images.Most lesions showed dense homogenous enhancement on CT and MR.Tumors associated with different degrees of mass effect.One patient received whole-body 18 FDG PET examination that presented as an intracranial hypermetabolic lesion.Conclusion:Primary brain lymphoma is a rare tumor that imaging findings overlap with those of other intracranial mass lesions,we can only make a suggestive diagnosis of primary brain lymphoma and pathological confirmation is meeded.