Primary central nervous system lymphoma MRI
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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Primary central nervous system lymphoma Microchapters |
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Differentiating Primary Central Nervous System Lymphoma from other Diseases |
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Diagnosis |
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Treatment |
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Case Studies |
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Primary central nervous system lymphoma MRI On the Web |
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American Roentgen Ray Society Images of Primary central nervous system lymphoma MRI |
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Directions to Hospitals Treating Primary central nervous system lymphoma |
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Risk calculators and risk factors for Primary central nervous system lymphoma MRI |
Overview
Primary CNS lymphoma is a primary intracranial tumor usually present in those with severe immunosuppression --- commonly in those with AIDS --- and represents around 20% of all cases of lymphomas in HIV infection (other types being Burkitt's lymphoma and immunoblastic lymphoma).
MRI
MRI or contrast enhanced CT usually shows multiple (1 to 3) 3- to 5-cm ring-enhancing lesions in almost any location, but usually deep in the white matter. The major differential diagnosis is cerebral toxoplasmosis, which is also prevalent in AIDS patients and also presents with a ring-enhanced lesion, although the contrast enhancement is more pronounced in toxoplasmosis and it presents with more lesions.