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CASE NUMBER
364
Diagnosis
Epidermoid
Note
These images demonstrate a lobulated T2 hyperintense, T1 hypointense, T2 FLAIR hyperintense, non-enhancing mass centered in the suprasellar and interpeduncular cisterns. The mass demonstrates restricted diffusion and is compatible with an epidermoid cyst. Most epidermoids are intradural and commonly involve the basilar cisterns as seen here. They tend to follow the signal of CSF, but do not completely suppress on FLAIR. Diffusion restriction is the defining imaging feature. Treatment is with surgical resection.
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