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A 42-year-old woman with complaints of headache, fever, and vomiting. Both HIV antibody and cryptococcus were detected and found to be positive after culture of CSF. Left parietal and frontal cortex is shown with swelling; and the adjacent sulcus is shown to be narrowed. The lesions manifest low intensity on T1WI (A), hyperintensity on T2WI (B), no limited diffusion (C), and linear contrast enhancement (D). Abnormal contrast enhancement of the right frontal lobe is also demonstrated.
