Presentation
Asymptomatic.
Patient Data
Age: 45 years
Gender: Male
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Bilateral globus pallidus symmetrical foci of hyperintense signal in T2 and FLAIR with slight peripheral hyperintense margins on T1WIs. No diffusion restriction.
Diagnosis: Focal areas of signal intensity (FASI)
Case Discussion
Differentials include
- carbon monoxide poisoning
- venous infarction
- bilateral basal ganglionic glioma
- primary CNS lymphoma
- toxoplasmosis
This patient is a known case of neurofibromatosis type 1.