Fig. 3
Intracranial toxoplasmosis in a 45-year-old patient with AIDS. a. Contrast-enhanced CT displays a hypoattenuating lesion with ring-enhancement in the right hemisphere of the cerebellum (arrow). b and c Axial fluid-attenuated inversion recovery MR images showing multiple brain lesions predominantly located in the grey-white matter junction, with mild mass-effect and some of them with surrounding oedema (arrows). d Gadolinium-enhanced axial T1-weighted MR image, the lesions (arrows) show ring-enhancement and a small eccentric nodule inside, the “asymmetric target sign,” which is suggestive of toxoplasmosis