Primary central nervous system lymphoma other imaging findings

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Marjan Khan M.B.B.S.[2]

Overview

Besides MRI, thallium single-photon emission computed tomography (SPECT) scans have been studied as a diagnostic tool to distinguish between PCNSL and cerebral toxoplasmosis. It was expected that lymphoma cells with a high metabolism would accumulate more thallium than infected,inflamed or normal tissue. Initial thallium SPECT studies showed very high sensitivity and specificity of increased thallium uptake for PCNSL versus cerebral toxoplasmosis in HIV patients.

Other Imaging Findings

• Besides MRI, thallium single-photon emission computed tomography (SPECT) scans have been studied as a diagnostic tool to distinguish between PCNSL and cerebral toxoplasmosis.
• It was expected that lymphoma cells with a high metabolism would accumulate more thallium than infected,inflamed or normal tissue.
• Initial thallium SPECT studies showed very high sensitivity and specificity of increased thallium uptake for PCNSL versus cerebral toxoplasmosis in HIV patients.

References

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