Concentric and Eccentric Target MRI Signs in a Case of HIV-Associated Cerebral Toxoplasmosis

<div>(a) T2 sequence demonstrating “concentric” target sign with concentric alternating hypointense and hyperintense rims. (b) Postcontrast sequence demonstrating “eccentric” target sign with a peripheral rim of enhancement and focal left lateral eccentric enhancing nodule.</div>

Case Reports in Neurological Medicine

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Figure 1

Figure 1: Concentric and Eccentric Target MRI Signs in a Case of HIV-Associated Cerebral Toxoplasmosis 