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Cerebral Toxoplasmosis and Lymphoma in AIDS: Perfusion MR Imaging Experience in 13 Patients Radiology 208:663-669, Ernst,T.M.,et al, 1998 See this aricle in Pubmed Article Abstract Reduced rCBV in toxoplasmosis lesions is probably due to a lack of vasculature within the abscess; increased rCBV in lymphomas is probably due to hypervascularity inn foci of active tumor growth; and decreased rCBV in the edema is probably d ue to vasoconstriction associated with increased interstitial pressure. Perfusion MR imaging is a rapid, noninvasive tool that may allow differentiation between cerebral lymphoma and toxoplasmosis in patients with AIDS.

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