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58 year old man with 2 month history of personality changes and headache.
Non-contributory
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Expansile mass lesion involving the splenium of the corpus callosum. The mass enhances homogeneously and produces a moderate amount of surrounding vasogenic edema. The mass is not particularly bright on FLAIR and T2.
• Glioma (astrocytoma, oligodendroglioma, oligoastrocytoma • Primary CNS Lymphoma • Tumefactive Demyelination » MS, ADEM, Marchiafava-Bignami Disease, etc. • Infection (Abscess, encephalitis, ventriculitis) • Metastatic disease
:: Read TopicDiagnosis Confirmed by: Biopsy and pathologic examination
:: Search Images for Diffuse Large B-Cell Lymphoma
Tx and Followup:Radiation and chemotherapy
Additional Discussion:The increased cellularity of "small round blue cell tumors" - like lymphoma - often has a characteristic imaging appearance of high attenuation on pre-contrast CT, low signal on T1 and T2 MR, and low ADC/high signal on DWI.
Discussion Author: Richard Conran
Diffuse Large Cell Lymphoma
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Topic Author: Richard Conran
The Department of Radiology and Radiological Sciences Uniformed Services University Bethesda, Maryland 20814.
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- Diffuse Large B-Cell Lymphoma 
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