Demographics:
34 years old, Female
Indication:
Headache, history of HIV/AIDS
Findings
CT
- Vasogenic edema in the right parieto-occipital white matter with minimal corresponding mass effect
MRI
- Peripherally-enhancing lesion in the right occipital lobe measuring 1.7 x 1.3 x 1 cm with surrounding vasogenic edema and minimal local mass effect
- Small area of restricted diffusion centrally in the lesion with a faint rim of restricted diffusion along the margins of the area of vasogenic edema surrounding the lesion
Annotated Images & Illustrations
Peripherally-enhancing lesion in the right occipital lobe (red arrow) with surrounding vasogenic edema.
Faint corresponding central restricted diffusion (red arrow) as well as faint restricted diffusion along the periphery of the surrounding vasogenic edema (yellow arrows).
Diagnosis
CNS toxoplasmosis
Differential Diagnosis
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Pearls
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