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. 2019 Aug 20;18:2325958219867315. doi: 10.1177/2325958219867315

Figure 4.

Figure 4.

Magnetic resonance imaging (MRI) of HIV-infected patients with cerebral toxoplasmosis. T1-weighted imaging showed ring-enhancing brain lesion with a small, enhancing asymmetric nodule along the wall of the lesion (the “eccentric target sign; A). T2-weighted imaging showed a lesion with concentric alternating zones of hypo- and hyperintensities (the “concentric target sign”; B). T1-weighted imaging showed ring-enhancing brain lesion with a small, enhancing central nodule (the “target sign”; C). The arrows show the abnormalities.